Thau Lagoon is a large, shallow coastal lagoon located in the south of France, near the city of Sète. It covers an area of approximately 7,500 hectares and is known for its rich biodiversity, including various species of fish and shellfish. The lagoon is also famous for its oyster and mussel farming, which contributes significantly to the local economy. The lagoon is surrounded by picturesque landscapes, including vineyards and charming villages. It is a popular destination for outdoor activities such as kayaking, birdwatching, and cycling. The unique ecosystem of Thau Lagoon is protected by environmental regulations to preserve its natural beauty and ecological balance.