Ruzizi River

Bukavu is a city in eastern Democratic Republic of the Congo (DRC), lying at the extreme south-western edge of Lake Kivu, west of Cyangugu in Rwanda, and separated from it by the outlet of the Ruzizi River. It is the capital of the South Kivu Province and as of 2012 it had an estimated population of 806,940.

river through which lake kivu empties into lake tanganyika.

Cyangugu (formerly Shangugu) is a city and capital of the Rusizi District in Western Province, Rwanda. The city lies at the southern end of Lake Kivu, and is contiguous with Bukavu, Democratic Republic of the Congo, but separated from it by the Ruzizi River. Two bridges and a dam cross the river frontier.