A notable feature of the Bangweulu system is a series of parallel sandy ridges running south-west to north-east. These are particularly striking in satellite photographs and are easily seen along the north-western shore, the Lifunge Peninsula "(2)", Mbalala Island "(3)", Chilubi Island "(6)", and the Kapata Peninsula "(10)". They divide the lake into three sections parallel to its main axis. One divides off a section called Lake Chifunabuli "(1)", 50 km long but only 5 km wide. Its entrance through a gap in the sand spits (at the end of Lifunge Peninsula) is only 250 m wide. Another sandy ridge, Mbabala Island, divides off a section called Lake Walilupe "(4)", 30 km long by 13 km wide. The main, middle section of the lake between Ifunge and Mbabala is known only as Bangweulu.