 As it is free of Bilharzia (schistosomiasis), unlike all other freshwater lakes in Ethiopia, Lake Langano is popular with tourists and city-dwellers.The lake is brown in colour and at first sight one may think that the lake is not clean.However this is not the case, the reason for the colour is due to the richness of minerals including high sulphur levels which have led many to believe that the lake water has healing properties.