The Étang de Thau is a large lagoon located in the south of France, near the Mediterranean coast. It covers an area of approximately 7,500 hectares and is known for its rich biodiversity, including various fish and shellfish species. The lagoon is a significant site for oyster and mussel farming, contributing to the local economy. Surrounded by charming towns like Sète and Mèze, the Étang de Thau is a popular destination for tourists and locals alike. Visitors can enjoy activities such as sailing, kayaking, and birdwatching, while also savoring the region's famous seafood dishes.