sentences:  The river flows generally west from Kisangani just below Boyoma Falls, then gradually bends southwest, passing by Mbandaka, joining with the Ubangi River, and running into the Pool Malebo (Stanley Pool).Kinshasa and Brazzaville are on opposite sides of the river at the Pool.Then the river narrows and falls through a number of cataracts in deep canyons, collectively known as the Livingstone Falls, and runs past Boma into the Atlantic Ocean.