Lake Assal

Lake Assal is a crater lake, located at the southern border of Tadjoura Region. It lies 155 meters below sea level and is the lowest point in Africa. Lake Assal has no outlet, streams flow into the lake and not away from it. 

Lake Assal sits at the top of the Great Rift Valley in the Danakil Desert where summer temperatures sometimes reach 52 degree celsius and are accompanied by strong drying winds. It has a high evaporation rate. The air temperature is very high. Strong winds cause further evaporation. All this evaporation leads to an increasing concentration of salt in the water, making the lake a mineralized brine that is the saltiest body of water in the world. The surrounding plain, once the lake floor, is a glistening expanse of salt. During each wet season the lake level rises, and as the water slowly evaporates, another band of salt is laid down on the plain. In the southeastern part of the lake, small fish inhabit the springs, but if they are accidentally carried out into the main part of the lake, they die at once. Transported by the waves, their bodies are thrown onto the plain, rapidly covered with salt and thus preserved.