Lake Fitri is located in the centre of Chad about 300 km east of N'Djamena. The normal size of the lake is about 50,000 hectacre. The size of this lake can triple in wetter years. This freshwater lake is shallow and is fed by seasonal rainfall and run-off from a catchment area estimated at 70,000 km². The principal river feed is the seasonal Batha River which carries water from the Ouaddai massif to the east.