Mèze (fr. Mèze, in occitan Mesa) is a commune in the Hérault department in southern France.
Lake de Thau or basin de Thau is the largest of a string of lagoons (étangs) that stretch along the French coast from the Rhône River to the foothills of the Pyrenees and the border to Spain in the Languedoc-Roussillon. Although it has a high salinity, it is considered the second largest lake in France. It is about 21 km long and 8 km wide, with an area of 7,012 hectares (27.07 sq mi). The mean depth of the lagoon is 4.5 m, but in the central navigation channel it can be 10 m deep. More