Bahiret el Bibane (Arabic: بحيرة البيبان ‎) is a lagoon located at the zarzis region of Tunisia. The heritage of this wetland is recognized internationally by the Ramsar Biban Lake is a coastal lagoon located in the state of civilians from the south-east of Tunisia is the administrative track Zarzis, 10 km north Bnqirdan City, and 20 km south of the city of Zarzis . An area of 27 thousand hectares, the largest lake in the Mediterranean basin rich in fish different Kalorath and sea bass and mullet, etc., and a height of between 0 and 10 m from the surface of the sea . [1] which is a coastal lagoon large, with a length of 32 km and display maximum 10 km and the rate of 4 m deep, which is partially separated from the Mediterranean Sea, as related by several channels width of the largest of 800 m . [1] and enter the fish. It is therefore to be considered a natural reserve of fish that you enter from the Mediterranean Sea, as well as the birds that winter destination, pink Kalnham and cormorants and cranes . [1] There are near Lake Biban Sabkhat al Bojml and marsh Mudaayanah, which is very important for Lake to fish that you enter where you live. Before the advent of French colonialism in the region were exploited by local sailors who were promoting their production in neighboring cities and even to the Libyan cities such as visitors and Tripoli.