Bordeaux to Sanguinet: submerged archaeological sites
Five archaeological sites beneath the lake, 3,000-year-old canoes, and France’s second-largest natural lake: Sanguinet, with its fine-sand beaches and crystal-clear waters, its Musée de France, and its “river of minks”—about 1 hour and 3 minutes from Bordeaux.
Sanguinet at a glance
Sanguinet is a village in the Born region situated on the eastern shore of Lake Cazaux-Sanguinet — France’s second-largest natural freshwater lake (~5,500–5,600 hectares) — 62 km from Bordeaux, or about a 1-hour, 3-minute drive: the shortest lakeside route in our Landes region guide. Its uniqueness is unmatched in France: beneath its crystal-clear waters lie five submerged archaeological sites, dating from the Iron Age to the Gallo-Roman period, including Losa, the original village—and some thirty to forty monoxyl canoes dating from 1800 B.C. to… 1815.
All of this can be admired at the Musée du Lac, which holds the “Musée de France” designation. This guide distinguishes fact from fiction: there is no “white sand” (fine sand and crystal-clear waters), no Blue Flag (the Blue Flag refers to a beach), and the church is not a listed historic site. We’ll wrap up with the easiest way to get there: a private door-to-door transfer.
Here are the key details to know before you go. Distances are calculated door-to-door from Bordeaux; the fare listed is for a private driver reservation at a fixed price provided in advance, with no unexpected meter charges. The information has been verified using Wikipedia, INSEE, the Mérimée database, the Sanguinet city hall, the Musée du Lac, and the Bisca Grands Lacs tourist office; event times and dates are subject to change and should be confirmed on site.
| Landmark | Details |
|---|---|
| Village | Sanguinet (Landes), 4,741 residents of Sanguinet (2023) |
| Location | Born region, east shore of Lake Cazaux-Sanguinet (France's second-largest natural lake) |
| Singularities | 5 Submerged Archaeological Sites · 3,000-Year-Old Canoes · The Lake Museum (Musée de France) |
| Must-See | the lake and its seven beaches, the Lake Museum, La Gourgue, and the Saint-Sauveur Church |
| Distance from Bordeaux | about 62 km · about 1 hour and 3 minutes by car (A63/A660) |
Where is Sanguinet located?
Sanguinet is located in the northern part of the Landes region, in the Pays de Born, on the eastern shore of the large Lake Cazaux-Sanguinet—62 km from Bordeaux via the A63 and A660, or about 1 hour and 3 minutes: It is the gateway to the great lakes of the Landes region. The village has 4,741 residents (2023), the Sanguinetois, which is experiencing strong growth (+13.3% since 2017)—its proximity to Bordeaux and the Arcachon Basin attracts year-round residents. It is part of the Mont-de-Marsan district, the Grands Lacs canton, and the community of municipalities the Great Lakes. The lake it borders is straddling two departments : Cazaux (La Teste-de-Buch, Gironde) to the north, Sanguinet to the east, Biscarrosse to the south. A strategic location to boot: Biscarrosse is 14 km away, Arcachon is 27 km away, and the Dune du Pilat is 28 km away — the perfect lakeside base camp between the ocean and the Bassin.
A dogwood name, but no blood
The etymology deserves some clarification: Sanguinet has nothing to do with blood. The name comes from the Gascon word *sanguin*—the dogwood, that shrub with bright red branches that thrives in damp soil—followed by the suffix *-et(a)*: “the place where dogwoods grow.” A botanical etymology, much like the village itself: here, everything revolves around water and the vegetation along the banks. The municipal area straddles the Gourgue, the small iron-rich river that feeds the lake, and features beaches of fine sand along waters renowned for their clarity—reaching up to 28°C in the height of summer— with a gentle slope that makes it one of the most family-friendly bodies of water in Aquitaine. Located about 1 hour and 3 minutes from Bordeaux, it’s no wonder that more and more people from Sanguinet are visiting each year.
France's second-largest natural lake, formed by a dammed river
Lake Cazaux-Sanguinet boasts some extraordinary statistics: approximately 5,500 to 5,600 hectares (11 km by 10), a maximum depth of 23 meters, and half a billion cubic meters of water—making it the second-largest natural freshwater lake in France, behind Hourtin-Carcans. It also has a fascinating geological history: it was formed when a river became trapped by the dunes. Here are the verified facts.
When the Dunes Swallowed the Valley
More than 3,000 years ago, the Gourgue River flowed peacefully toward the Atlantic. Then the coastal dune chain, driven by the winds, blocked its mouth: deprived of an outlet, the waters rose, flooding the valley—and, as we’ll return to later, the villages that once stood there. Thus the lake was born, like all its counterparts along the Aquitaine coast: rivers blocked by sand.
The result is truly impressive: 55 km² of crystal-clear freshwater, an average depth of 8.6 meters (23 at its deepest point), and that signature Sanguinet feature—light-colored sandbars that give the shoreline the feel of a lagoon. Since 1834–1838, the Landes Canal has connected the lake to its southern neighbor (Biscarrosse-Parentis); the quality of the bathing water has been monitored through a dedicated program since 2013. In the summer, the water warms to 28 °C: a “children’s sea,” with no waves or rip currents.
One lake, two departments, three shores
The human geography of the lake is worth a look on the map: three municipalities share its shores, straddling two departments. To the north, Cazaux—a lakeside neighborhood of La Teste-de-Buch, and thus in Gironde—gives the lake its first name; to the east, Sanguinet occupies the eastern shore, the gentlest and most family-friendly; to the south, Biscarrosse rounds out the loop with its ports of Navarrosse and Maguide. Each shore has its own character—and Sanguinet has drawn the best lot: the eastern shore, which faces the setting sun.
On summer evenings, the sun sinks straight into the lake, setting the shallows ablaze—the most reliable daily spectacle in the Born region, free to enjoy from any of the seven beaches. Add the reed beds along the town’s shoreline, which serve as refuges for waterfowl, and you’ll grasp the true character of this shoreline: a rare balance between a family-friendly beach and a natural area, which the town protects from what has remained modest development.
Five archaeological sites beneath the lake
Beneath the waters of Sanguinet lie five submerged archaeological sites — Put Blanc, l’Estey du Large, Losa, Matocq, and La Forêt — that chronicle three thousand years of human settlement, from the Iron Age to the Gallo-Roman era, submerged by rising waters. A lacustrine Pompeii in the Landes region, excavated for fifty years by volunteer divers. Here is the verified chronology.
The chronology and descriptions of the five sites were verified on July 24, 2026, on the official website of the Sanguinet Lake Museum, which documents the chronological context, underwater excavations, and preserved collections.
From Put Blanc to Losa, the original village
The timeline, which is often overlooked, deserves to be established. Put White, the oldest, is a habitat of theIron Age (VIIe-IVe century B.C., now lying at a depth of 12–13 meters—not to be confused with the 16th-century wrecke century of the same name. TheEstey du Large (IIIe-Ier (century B.C.) is even more surprising: a site fortified with a double wall, along with a center for iron production — a Gallic “industrial village” submerged underwater.
Losa, finally, is the only one Gallo-Roman (Ier-IIIe (century A.D.): a mansio — a truck stop — with its fanum, the small temple first discovered in 1978 at a depth of 6–7 meters. Losa is considered the original village of Sanguinet, submerged by the steadily rising waters: over the centuries, the residents simply moved further and further back, until they reached the current village. Matocq and La Forêt round out the quintet.
So simply writing “sunken Gallic villages” is inaccurate—the truth, spanning a thousand years, is far more staggering.
How do you excavate a submerged village? With the patience of a Benedictine monk and under unique conditions: the lake’s fresh, crystal-clear water remarkably preserves the wood—hence the condition of the canoes—and the shallow depth of the sites (6 to 13 meters) allows for long research dives. Volunteer archaeologists survey the lake bottom, document, photograph, and collect samples—then the artifacts are sent to laboratories and, for the most beautiful ones, to the museum’s display cases. This low-key excavation site makes Sanguinet one of France’s premier destinations for freshwater underwater archaeology—less well-known than the Alpine lakes and their pile dwellings, but just as revealing: here, layer by layer, one can trace the rise of a lake and humanity’s determination to live on its shores—retreating a little further with each generation. The present-day village is merely the final stage of this millennia-long retreat.
Dugout canoes from 1800 B.C. to 1815
The most spectacular artifacts can be summed up in a single Gascon word: monoxyl canoes, each carved from a single tree trunk. The lake has yielded between thirty and forty of them—26 made of pine and 4 of oak, according to the counts—dating from 1800 B.C. to… 1815 A.D.: three thousand six hundred years of continuous use of the same type of boat on the same body of water—a record of technological consistency.
The stars have their own profiles: the Canoe No. 20, recorded in 2003, stands at approximately 3,270 years (Bronze Age); the No. 5, a hollowed-out pine log measuring 8 meters by 75 centimeters, is dated to between -740 and -620 — nearly twenty-eight centuries before the paddleboards that glide across the same waters today. Two of these venerable artifacts are on display in a climate-controlled showcase at the village museum—the natural next stop on the tour.
The Lake Museum and the CRESS Divers
The Sanguinet Lake Museum—a municipal museum with the “Musée de France” designation—displays more than 400 objects recovered from the lake bottom by volunteer divers from CRESS: ceramics, amphorae, coins, jewelry, pine tar jars, and two canoes displayed in climate-controlled glass cases. Behind the collections lies a fifty-year human adventure, sparked by a botanist. Here is the verified story.
The Pain Specialist Who Discovered Villages
Archeology in Sanguinet owes everything to a scientist who came to study… algae. In 1976, Paul Capdevielle, an internationally renowned algologist, founded CRESS—the Sanguinet Center for Research and Scientific Studies—to study the lake’s flora; but the dives revealed much more than just algae, and the organization shifted its focus to underwater archaeology. Fifty years later, CRESS brings together some twenty permanent members and more than a hundred volunteer divers, who conduct excavations from March through December—a campaign returned to the Losa fanum again in 2025.
Their haul is on display at the Lake Museum (112 Place de la Mairie): 412 items from the Neolithic to the Gallo-Roman period, including these pine tar jars who serve as a bridge between the Gauls of the lake and the 19th-century resin tappers of the Landese century. Self-guided tours during the season, by appointment in the winter—and one of the best value-for-money experiences in the department: a “Musée de France” in a village of 4,741 residents.
What the Storefronts Tell Us
The collection can be savored like a Prévert-style inventory of lakeside life: ceramics from the Iron Age to the amphorae Roman, some currencies Gaulish to jewelry made of bronze—and, in a touch of Landes irony, these pine tar jars which prove that resin harvesting did not begin with the 19th-century resin collectorse century: People living along the lake were already distilling pine resin two thousand years ago. The two canoes The pieces on display are showcased in a controlled environment, their wood saturated with water and stabilized by years of treatment.
The child-friendly tour is a hit with families: maps of the lake showing the villages, scale models, photos of excavations—you leave seeing the lake in a whole new light, knowing what lies beneath it. Plan on spending a good hour here, and combine your visit with a trip to Caton Beach, just a few minutes away: archaeology in the morning, swimming in the same waters in the afternoon—few museums offer such an immersive experience.
La Gourgue, the red river that formed the lake
The Gourgue is the lake’s source river: about ten kilometers of reddish, iron-rich waters that continue to feed the body of water they unwittingly created—and a wild corridor where the European mink and the European pond turtle survive. Its banks also conceal the village’s most endearing little heritage sites. Here is what the sources say.
Mink, European pond turtle, and healing springs
The Gourgue Valley is the hidden gem of Sanguinet. Its waters iron-rich — reddened by the iron in the sand, like the church lichen — are home to two rare species found in the wetlands of the Landes region: the Vision for Europe, one of France's most endangered mammals, and the cistude, the freshwater turtle.
The possible presence of European mink and European pond turtles along the riverbanks is documented in the official fact sheet on the Gourgue published by the town hall, accessed on July 24, 2026. Sightings are rare and require discretion and keeping a safe distance.
Along the riverbanks, tradition has taken root healing springs : Saint Basil, known for its wounds, and Sainte-Rose, for skin conditions—benefits that we report as the popular belief that they are, but the washhouse and the last one boat garage fishing in the early 20th centurye century, however, are very real. Guide's honesty: the former 5.1-kilometer nature trail (1991) along the river is now Reported as closed to the public, since the marshes are virtually inaccessible—the town hall instead promotes the “Le Village” heritage trail, in the heart of the town. La Gourgue is best admired from a distance: that’s the price you pay for its wildlife.
One must appreciate the hydrological paradox: this unassuming river, barely ten kilometers long, is the unwitting creator of France’s second-largest lake. When the dunes blocked its path to the ocean, it continued, undeterred, to pour its waters into the basin—three thousand years later, it still does so, maintaining the level of the giant it gave birth to. Its upper course, between Sanguinet and the hinterland, winds through marshes that have become nearly impenetrable—a fact that has been its ecological boon: the European mink thrives only in France’s most tranquil wetlands, and it has made its home here. For visitors, the Gourgue is best experienced from its banks: the village bridge, the area around the washhouse and springs, and the river’s mouth where it flows into the lake—three windows onto a river that has earned the right to remain wild.
Saint-Sauveur and the village that retreated from the water
The present-day town of Sanguinet is the result of a two-thousand-year retreat from rising waters: its Gallo-Roman predecessor, Losa, lies beneath the lake, and its Saint-Sauveur Church—a Neo-Romanesque structure built between 1853 and 1856—replaced a 12th-century buildinge century. A village of memories, to be explored on foot. Here are the verified facts.
A church built in 1856, not a listed historic monument
Heritage status: The Saint-Sauveur Church is neither classified nor listed as a Historic Monument. Its POP entry is part of the General Inventory, which is a documentary record rather than a protective measure.
Date: The current Neo-Romanesque building was constructed between 1853 and 1856 by architects Jules Sibien and Layrolle on the site of a 12th-century churche century.
Implications for the tour: Present Saint-Sauveur as a stop on the town’s heritage tour, not as a listed monument. This interpretation complements that of Losa and the gradual relocation of the town in response to rising water levels.
The “Le Village” heritage trail, marked by the town hall, connects the church, the Market Square, and the historic houses of the village—an urban stroll that complements the beach. And the village calendar has its regular events: the Saturday morning market (9 a.m.–1 p.m., year-round, at the Market Square), which runs twice a week on Wednesdays in July and August and stays open late on Saturday evenings during the summer; the Saint-Sauveur festivities, meanwhile, were held from June 19 to 21, 2026—a carnival, a meal under the market hall, and fireworks, the annual June tradition.
White sand, Blue Flag, Gallic village: what you often read
Several claims are circulating about Sanguinet that warrant correction, backed by sources—which is the whole point of a reliable guide. The sand, the labels, the chronology of the villages: here’s what’s true and what’s false.
Fine sand, a “Pavillon” that isn’t a certification
First point: Sanguinet’s famous “white sand” is an exaggeration that no official source uses—the city hall and tourist offices refer to fine sand and crystal-clear, clear, transparent waters; the pale shoals complete the legend, and frankly, it doesn’t need to be exaggerated.
The second, interesting pitfall: the lake does not have a Blue Flag—"the Pavillon" is simply the name of one of the beaches, which has misled more than a few writers; water quality has been monitored through the Great Lakes Association’s dedicated program since 2013. Third: there is no “Lac Beach”—the official beaches are called Caton, Beau-Rivage, Les Eaux qui rient, Le Pavillon, Avenue du Stade, the Sailing Club, and Les Bardets.
And the Vélodyssée doesn't go through Sanguinet: the main route runs through Biscarrosse, and the village is connected to it via the local trails of the Bisca Grands Lacs network.
Villages dating back a thousand years, not all “Gallic”
When it comes to archaeology, popular science often oversimplifies the chronology by referring to “sunken Gallic villages”: this is incorrect. Put White dates from the Iron Age (7the-IVe B.C.), theEstey du Large from the end of the Iron Age (IIIe-Ier B.C.) — alone Losa is Gallo-Roman (Ier-IIIe A.D.). The correct term: “sites” Protohistoric and Gallo-Roman ". Also, be careful with homonyms: thePut Blanc shipwreck (XVIe (century) has nothing to do with the protohistoric village of the same name.
Finally, the number of canoes varies depending on the source (30 according to Wikipedia, “about forty” according to the museum): we write “between thirty and forty.” And the Saint-Sauveur Church is not a listed building—a Neo-Romanesque structure built between 1853 and 1856. Taken one by one, these details may seem nitpicky; taken together, they make the difference between a copied legend and verified history—which, in this case, is by far the more beautiful of the two.
What is there to do in Sanguinet?
At Sanguinet, you can swim at the lifeguard-patrolled beaches of Caton and Le Pavillon (July–August), and enjoy water sports—sailing, stand-up paddleboarding, canoeing, pedal boating, and water skiing—from the Pavillon and Bardets centers, go zander fishing with the AAPPMA, bike the 15 km Navarrosse trail, and dive three millennia into the past at the Lake Museum. All of this is about 1 hour and 3 minutes from Bordeaux—fresh lake air just a short trip away. Here, in concrete terms, are the actual, verified activities, along with their days and locations.
- The lake's beaches — 7 official beaches; Caton and Le Pavillon are lifeguard-patrolled in July and August; Caton is accessible to people with disabilities (Tiralo), and Le Pavillon is a "smoke-free" beach
- Water sports — Pavillon and Bardets centers: sailing, windsurfing, stand-up paddleboarding, canoeing, pedal boats, water skiing, boat rentals (with or without a license)
- The Lake Museum — Musée de France, 412 artifacts and 2 millennia-old canoes; self-guided tours during the season, by appointment in winter
- Fishing—zander (the king of the lake), perch, pike, and largemouth bass; an active AAPPMA chapter and two fishing piers accessible to people with disabilities
- Biking — Navarrosse ↔ Sanguinet trail (~15 km along the lake), the 145-km Bisca Grands Lacs network
- The Market — Saturday mornings year-round (9 a.m.–1 p.m., Place du Marché); additionally on Wednesdays during the summer; and a night market on Saturday evenings in July and August
- The "The Village" Heritage Tour — Saint-Sauveur Church, Place du Marché, historic houses
- The Saint-Sauveur Festival—the annual June event (the 2026 edition will be held June 19–21, including fireworks)
The Perfect Day at the Lake
The combination that families unanimously love: Saturday market For appetizers—baby squid, poultry from the Landes region, fruits from the Born— Lake Museum late morning (allow a good hour—the kids will be unstoppable on the canoes), picnic and swimming at Cato in the afternoon—gentle slope, water temperature of 28 °C in the summer, lifeguards on duty in July and August—followed by paddleboarding or pedal boating at the base of the Pavilion To wrap things up. A sporty version: the Navarrosse Track A morning bike ride (15 km along the wooded shore toward Biscarrosse-Lac), followed by a swim on the way back. A more contemplative option: the fishing piers At dawn, when the zander are hunting and the mist rises from the lake—the most underrated sight in the Born region. On a summer evening, the Saturday Night Market End the day at Place du Marché. A full day, with no unnecessary walking: everything is within a three-kilometer radius.
| Activity | Where / When | Good to Know |
|---|---|---|
| Swimming | Caton and Pavillon Beaches | monitored in July–August; Caton PMR (tiralo) |
| Water Sports | Pavillon and Bardets bases | sailing, stand-up paddleboarding, pedal boats, water skiing, boats |
| Lake Museum | 112 Town Hall Square | Musée de France; free admission during the season; by appointment in winter |
| Fishing | the entire lake; 2 fishing piers accessible to people with disabilities | zander, perch, pike, largemouth bass |
| Bicycle | Navarrosse-Sanguinet trail ~15 km | Bisca Great Lakes Network: 145 km |
| Market | Saturday 9 a.m.–1 p.m. (plus Wednesdays during the summer) | late-night hours on Saturday evenings in July and August |
What to see nearby: Biscarrosse, Arcachon, Pilat
Sanguinet is centrally located within the “Golden Triangle” of the southern Bassin: Biscarrosse is 14 km away, Cazaux is 21 km away, Arcachon is 27 km away, the Dune du Pilat is 28 km away—and the ocean at Biscarrosse-Plage is just twenty-five minutes away. Here are the verified distances.
Between the Lakes and the Basin
To the south, Biscarrosse (14.2 km) encompasses the seaplane town—including the Seaplane Museum—the second-largest lake, and the ocean research station: see our Biscarrosse Guide and our Guide to Biscarrosse-Plage. To the north, Cazaux (21.3 km) shares the same lake on the Gironde side, before Arcachon (27.1 km) and its Belle Époque piers; the Pilat Dune (27.8 km), the highest dune in Europe, is the highlight of the excursion—see our Guide to the Dune du Pilat. The train stations The nearest stations: La Teste-de-Buch (TER Bordeaux-Arcachon line, 21.6 km) and Ychoux (Bordeaux-Hendaye line, 25.3 km). Sanguinet offers an unbeatable combination for a vacation: the tranquility of a lakeside village, with the ocean, the Bassin, and France’s most famous dune all within half an hour—and Bordeaux about 1 hour and 3 minutes away for an evening round trip.
A trip like this deserves its own guide: the Dune du Pilat. From Sanguinet, it takes half an hour to reach via the Route des Lacs—and the contrast is striking: leaving the largest freshwater lake in southwestern France to climb Europe’s highest dune—two natural records in a single morning. A tip from regulars: go early (the parking lot fills up by 10:30 a.m. in the summer) and come back for lunch by the lake, where an afternoon swim washes away the sand from the climb. Another combination that’s a hit: Arcachon at the end of the day—piers, ice cream, and the Belle Époque waterfront just as the crowds begin to thin out. Sanguinet thus serves as a discreet base in the Bassin: you sleep in peace at Landes prices and explore the Gironde—a trade-off that families have fully embraced.
| Destination | Distance / time from Sanguinet | Must-See |
|---|---|---|
| Biscarrosse | 14.2 km · 18 min | Hydraviation Museum, the Two Lakes |
| Cazaux | 21.3 km · 23 min | the other side of the lake, on the Gironde side |
| La Teste-de-Buch | 21.6 km · 24 min | Bordeaux-Arcachon TER Station |
| Arcachon | 27.1 km · 29 min | waterfront, piers, Ville d'Hiver |
| Dune du Pilat | 27.8 km · 31 min | the tallest dune in Europe |
| Ychoux | 25.3 km · 29 min | TER station on the Bordeaux–Hendaye line |
When should you visit Sanguinet?
Supervised swimming takes place in July and August, the water reaches 28 °C in the height of summer, the museum is open for self-guided tours during the summer months, and CRESS divers conduct excavations from March through December: the lake is bustling with activity year-round. Here is the verified schedule.
| Season | What's in Store for You |
|---|---|
| Spring (April–June) | Lake where the first sailboats were launched, Saint-Sauveur Festival (annual event in June), bike paths for personal use |
| Summer (July–August) | Caton and Pavillon under surveillance, water temperature at 28 °C, market doubled in size + Saturday night events, all water sports centers fully operational |
| Fall (Sept.–Oct.) | The best place to fish for zander, a lake with golden hues, a peaceful museum |
| Winter | picturesque mists, waterfowl in the reed beds, museum open by appointment |
Seasonal Tip
The highlight of the year in Sanguinet is the the height of summer, let's face it: water at 28°C, no waves, no rip currents, no jellyfish, and a gentle slope—the perfect “anti-ocean” for young children, about 1 hour and 3 minutes from Bordeaux, while the Atlantic beaches demand constant vigilance. June offers the ideal balance for connoisseurs: the Saint-Sauveur festivities, a lake that’s already warm, and beaches that are still uncrowded. Thefall belongs to the fishermen—the zander of Cazaux-Sanguinet is a national benchmark—and to photographers of the morning mists. In winter, the village focuses on its Saturday market and its reed beds teeming with birds: the Lake Museum can be visited by appointment during this time, offering a rare, intimate encounter with the canoes. A useful landmark: the east bank (Sanguinet) watches the sunset—summer evenings there are spectacular, with the sun sinking straight into the lake.
One last helpful tip for anyone torn between the lake and the ocean: you can do both in a single day. Mornings at the lake—calm waters, kids in the shallows, paddleboarding without any choppy waves—and afternoons riding the waves at Biscarrosse-Plage, just twenty-five minutes away, when the tide and lifeguard conditions allow. This is the choice that regulars at Le Born have been making for generations, and it’s the key selling point for campgrounds in the area. In the off-season, the order is reversed: the ocean for walks and the spectacle of the fall swells, the lake for its mildness—its shallow waters retain heat longer than the Atlantic. Sanguinet, situated right in the middle of it all, lets you choose each morning without having to book anything in advance: the understated luxury of a well-designed landscape.
How much does the trip cost, and how do I get there?
A private transfer from Bordeaux to Sanguinet costs 120 € in a sedan (1–3 passengers), a fixed price provided in advance, for approximately 62 km and about 1 hour and 3 minutes by car via the A63 and A660—the shortest lakeside route in our Landes catalog. If you don’t have a car, the TER stops at La Teste-de-Buch (22 km) or Ychoux (25 km). Here’s an honest comparison.
By car from Bordeaux
The route is straightforward: the bypass, the A63, then the A660 toward Arcachon, and the D46 due south to the lake—about 62 km, 59 minutes according to OSRM. It’s one of the most accessible getaways in the region: close enough for a day trip, yet exotic enough for a full vacation. With a private driver, the trip is door-to-door—from your home, Mérignac Airport, or Saint-Jean train station to Caton Beach, the campground, or the museum—with paddleboards and bikes loaded. The price is fixed and quoted in advance: 120 € in a sedan; an 8-passenger van is available upon request for families. And for a combined itinerary—morning at the lake, afternoon at the Dune du Pilat, evening in Arcachon—the driver will take you through the stops along the “Golden Triangle” while you relax and enjoy the experience.
Without a car: La Teste or Ychoux, then by road
Sanguinet does not have a train station. The nearest stations are: La Teste-de-Buch (21.6 km, ~24 minutes), on the frequent-service Bordeaux-Arcachon TER line, and Ychoux (25.3 km), on the Bordeaux-Hendaye line—the historic Landes station in the area. In both cases, no public transportation completes the journey: a car is required. The smoothest option for a traveler without a car is still an end-to-end private transfer from Bordeaux—the trip is short, and the fare is one of the most affordable in the catalog—or the TER to La Teste followed by a chauffeur service. Once there, the village is best explored on foot or by bike: the beaches, the museum, the market, and the water sports centers are all within walking distance, and the Navarrosse trail opens up the southern shore. The Born equation, once again: plan your arrival, then spend your stay cycling—or paddling.
| Option | Duration | What You Need to Know |
|---|---|---|
| Executive car service (Door-to-Door) | ~1 hr 03 min | 120 € (1–3 people), fixed price, 8-passenger van available upon request |
| Personal car | ~1 hr 03 min | A63/A660, then D46; beach parking lots are full in August |
| TER Bordeaux → La Teste + by car | ~40 min + 24 min | 22 km remaining without public transportation |
| TER from Bordeaux to Ychoux + drive | ~40 min + 29 min | 25 km remaining without public transportation |
Frequently Asked Questions
Where is Sanguinet located?
In the northern Landes region, in the Born area, on the eastern shore of Lake Cazaux-Sanguinet—the second-largest natural freshwater lake in France. The village (population 4,741 in 2023, up 13.3% since 2017) is part of the Grands Lacs community of municipalities. From Bordeaux, it’s about 62 km and approximately 1 hour and 3 minutes via the A63 and A660—it’s one of the largest lakes closest to the metropolitan area, with Biscarrosse 14 km away, Arcachon 27 km away, and the Dune du Pilat 28 km away.
What are the sunken villages of Sanguinet?
Five archaeological sites lying beneath the lake: Put Blanc (Iron Age, 7th–4th centuries B.C.), l'Estey du Large (3rd–1st centuries B.C., a fortified site with double walls where iron was produced), Losa—the original village of Sanguinet, a Gallo-Roman mansio with its temple (fanum) discovered in 1978—as well as Matocq and La Forêt. All were submerged by the rising waters of the lake, which formed when the dunes blocked the Gourgue River more than 3,000 years ago. Their treasures can be admired at the Musée du Lac.
What is the Sanguinet Lake Museum?
The village’s municipal archaeology museum, designated a “Musée de France”—112 Place de la Mairie. It displays 412 artifacts recovered from the lake by volunteer divers from CRESS: pottery, amphorae, coins, jewelry, pine tar jars, and two monoxyl canoes preserved in display cases under controlled atmospheric conditions. Self-guided tours are available during the season; by appointment in the winter. A rarity: a “Musée de France” designation in a village of 4,741 residents, built on fifty years of underwater excavations.
How much does a trip from Bordeaux to Sanguinet cost with a chauffeured transfer?
A private transfer from Bordeaux to Sanguinet costs 120 € in a sedan (1 to 3 passengers), with a fixed price provided before the trip—no meter and no surprise surcharges. The trip covers approximately 62 km and takes about 1 hour and 3 minutes via the A63 and A660, door-to-door: from your home, Mérignac Airport, or Saint-Jean Train Station to the beach, campground, or museum. An 8-passenger van is available upon request, including paddleboards and bicycles. This is the shortest lakeside transfer in our Landes region catalog.
What is there to do in Sanguinet?
Swim at the lifeguard-patrolled beaches of Caton and Le Pavillon (July–August, water up to 28 °C), go sailing, paddleboarding, pedal boating, or water skiing from the Le Pavillon and Les Bardets centers, visit the Lake Museum and its millennia-old canoes, go zander fishing (two accessible fishing piers), bike along the Navarrosse trail (~15 km along the lake), visit the Saturday morning market—which doubles in size on Wednesdays and stays open late on Saturday evenings during the summer—and follow the village’s heritage trail.
Why are Sanguinet's canoes famous?
Because they span 3,600 years of history on the same body of water: some 30 to 40 monoxyl canoes—each carved from a single log, 26 made of pine and 4 of oak according to the counts—spanning from 1800 B.C. to 1815 A.D. No. 20, recovered in 2003, is approximately 3,270 years old (Bronze Age); No. 5, an 8-meter pine log, is dated between 740 and 620 BCE. Two of them are on display in a climate-controlled glass case at the Musée du Lac.
Is the water in Lake Sanguinet really clear?
Yes—that’s what it’s known for, as confirmed by city hall and the tourist offices: crystal-clear waters against a backdrop of fine sand, pale shallows reminiscent of a lagoon, a gentle slope, and temperatures reaching 28 °C in the height of summer. However, the “white sand” you sometimes read about is an exaggeration, and the lake does not have Blue Flag certification—“Le Pavillon” is simply the name of one of its beaches, a fact that has tripped up more than a few writers. Water quality has been monitored through a dedicated program since 2013.
What are the ranges for Sanguinet?
Seven official beaches listed by the city hall: Caton, Beau-Rivage, Les Eaux qui rient, Le Pavillon, Avenue du Stade, the Sailing Club, and Les Bardets. Two are lifeguard-patrolled in July and August: Caton—accessible to people with limited mobility via a beach lift—and Le Pavillon, designated a “smoke-free beach” during the summer. All offer the same lakeside amenities: fine sand, a very gentle slope, and calm water without waves or rip currents—the perfect family-friendly lake, about 1 hour and 3 minutes from Bordeaux.
Can you see the sunken sites while diving?
The excavations are reserved for divers from CRESS—the Sanguinet Center for Research and Scientific Studies, founded in 1976 by algologist Paul Capdevielle—who work from March to December with more than 100 volunteers; Another excavation campaign was conducted at the Losa fanum in 2025. The general public can explore the sites in a different way: at the Lake Museum, where the collections, maps, and models bring the submerged villages to life. Recreational diving is also available on the lake through local water sports organizations.
On what day is the Sanguinet market held?
Saturday mornings year-round, from 9 a.m. to 1 p.m., at Place du Marché (Avenue des Grands Lacs). In July and August, a second market is held there on Wednesday mornings, and the Saturday market extends into the evening as a night market—the village’s summer highlight, along with the water sports club evenings. The Saint-Sauveur Festival, the annual June event (fair, meals in the market hall, fireworks), took place from June 19 to 21, 2026.
What is the closest train station to Sanguinet?
La Teste-de-Buch, 21.6 km (~24 minutes) away, on the frequent-service Bordeaux-Arcachon TER line; the alternative in the Landes region is Ychoux, 25.3 km away, on the Bordeaux-Hendaye line. There is no public transportation connecting to the village from there; you’ll need to finish the trip by car. Most visitors without a car choose the direct private transfer from Bordeaux (62 km, ~1 hr 03 min, 120 € in a sedan)—the trip is short and the fare is one of the most affordable in the catalog—or the TER to La Teste followed by a private chauffeur.
When is the best time to visit Sanguinet?
In the height of summer for the signature experience: water at 28 °C, with no waves or rip currents, and lifeguarded in July and August—the perfect “anti-ocean” for young children. In June for the Saint-Sauveur festivities and a lake that’s already warm; in the fall for zander fishing—a national favorite—and the morning mists; in the winter for the birds in the reed beds and a private tour by appointment on the museum’s canoes. A bonus on the east shore: the sun sets directly into the lake—summer evenings are spectacular.
Further Reading
- The City of Seaplanes: see the Biscarrosse Guide (Seaplane Museum and the two lakes, 14 km away)
- The Born Ocean: see the Biscarrosse-Plage Guide (beaches and surfing, 25 min away)
- Compare two experiences by the water: read the guide to Lake Curton, a private area in southern Gironde
- Europe's tallest dune: see the Guide to the Dune of Pilat (28 km away)
- The Basin : see the Guide to the Arcachon Basin (piers, oysters, and the town of Hiver, 27 km away)
- Book your trip: book online or browse all our destinations
Sources and References
- Wikipedia — Sanguinet — Population: 4,741 (2023); etymology of the dogwood; Losa, the original village; Saint-Sauveur Church (1853–1856, not a designated historic site)
- Wikipedia — Lake Cazaux and Sanguinet — 55 km², max. depth 23 m; 5 submerged sites (Put Blanc, Estey du Large, Losa, Matocq, La Forêt); dugout canoes; Landes Canal (1834–1838)
- Lake Sanguinet Museum — Musée de France, collections and underwater excavations; accessed July 24, 2026
- Sanguinet Town Hall — La Gourgue — Waterways, European mink, European pond turtle, and riverside heritage; accessed July 24, 2026
- Bisca Grands Lacs Tourist Office — crystal-clear waters reaching up to 28 °C in the summer; water sports centers; a 145-km cycling network; France’s second-largest natural lake
- Great Lakes Regional Council — a lake covering ~5,600 ha, with a volume of 500 million m³; the largest of the lakes in the Landes region, and the second-largest in France after Hourtin-Carcans
- POP Mérimée — Saint-Sauveur Church — General Inventory entry only — no Historic Monument designation in the municipality
Article published and updated on July 16, 2026.
On the Way to the Lake of the Sunken Villages
Direct transfer from Bordeaux (~1 hr 03 min via the A63/A660) to Sanguinet, its beaches, and its museum—from your home, airport, or train station to the lake, campground, or village, including paddleboards and bikes, with an optional trip to Biscarrosse or the Dune du Pilat.
