The Kaokoveld Desert occupies a coastal strip covering 45,700 square kilometers (17,600 sq mi), from 13° to 21°S and is bounded by the Atlantic Ocean to the west, the Namibian savanna woodlands to the east, and the Namib Desert to the south. The Kaokoveld is a harsh desert of drifting sandunes and rocky mountains. It receives most of its rainfall during the summer, which distinguishes it from the adjacent Namib Desert to the south, which receives most of its rain during the winter. The Kunene River is the only permanent watercourse but many dry riverbeds (including the Hoanib, Hoarusib and Khumib Rivers) carry moisture through the desert and are home to animals including elephants, black rhinos, and giraffe. Other than those the area is ancient desert sand, moistened by occasional coastal fog.