Far to the south-west lies Omo National Park, the largest in the country, with an area of 4,068 square kilometers. It is a vast expanse of true wilderness, adjacent to the Omo River, which flows southwards into Lake Turkana and is one of the richest and least-visited wildlife sanctuaries in eastern Africa. Eland, oryx, Burchell’s zebra, Lelwel hartebeest, buffalo, giraffe, elephant, waterbuck, kudu, lion, leopard and cheetah roam within the park’s boundaries.