Lake Kivu is one of the African Great Lakes.  It lies on the border between the Democratic Republic of the Congo and Rwanda, and is in the Albertine Rift, the western branch of the East African Rift. Lake Kivu empties into the Ruzizi River, which flows southwards into Lake Tanganyika

Lake Kivu is approximately 90 km (56 mi) long and 50 km (31 mi) at its widest.  Its irregular shape makes measuring its precise surface area difficult; it has been estimated to cover a total surface area of some 2,700 km2 (1,040 sq mi), making it Africa’s eighth largest lake