Africa Desert is a term used to refer to the three major deserts located in Africa: the SAHARA, Kalahari, and SINAI. The SAHARA is the largest desert in the world, covering an area of over 3.5 million square miles across 11 countries in North Africa. The Kalahari is a semi-arid desert located in southern Africa, spanning over 360, 000 square miles across Botswana, Namibia, and South Africa. The SINAI is a peninsula located in northeastern Egypt, covering an area of about 23, 500 square miles.