Kalambo Falls on the Kalambo River is a 772ft (235m) single drop waterfall on the border of Zambia and Tanzania at the southeast end of Lake Tanganyika. The falls are the second-highest uninterrupted falls in Africa (after South Africa’s Tugela Falls). Downstream of the falls the Kalambo Gorge which has a width of about 1 km and a depth of up to 300 m runs for about 5 km before opening out into the Lake Tanganyika rift valley.