Bay of Arcachon

The Bay of Arcachon is a triangular tidal lagoon on the Gironde coast of Nouvelle Aquitaine, covering approximately 155 square kilometers and separated from the Atlantic Ocean by the narrow Cap Ferret peninsula to the north and the towering Dune du Pilat to the south. The bay functions as a vast natural nursery for fish and shellfish, and its oyster beds produce around 10,000 tonnes of oysters annually—roughly one-eighth of France's entire oyster output. The elegantly decayed resort town of Arcachon, with its extraordinary 19th-century winter villas hidden in a pine forest on the southern shore (the Ville d'Hiver quarter), serves as the main gateway. Boat trips from Arcachon's Jetée Thiers cross to the bird sanctuary of the Île aux Oiseaux, a tidal island famous for two wooden huts on stilts—the cabanes tchanquées—that appear to float above the water at high tide. The village of L'Herbe and the hamlet of La Vigne on the Cap Ferret peninsula retain a quiet, authentic fishing village character far removed from Arcachon's resort bustle. Cycling tracks circle much of the bay, making it one of the most cycle-friendly leisure destinations in southwestern France. Oyster farms can be visited directly, and port-side stalls in Arcachon, Cap Ferret, and the small villages along the Leyre estuary sell freshly shucked oysters with rye bread and lemon from early morning. Boat hire, stand-up paddleboarding, and kayaking are widely available throughout the summer season, and the calm, shallow waters make the bay particularly safe for families with children.