The Kalahari Desert is a large semi-arid sandy savannah in Botswana, covering an area of over 360, 000 square miles. It is the largest continuous stretch of sand in the world and is home to a variety of wildlife, including the meerkat, gemsbok, and brown hyena. The Kalahari is also known for its vast salt pans, which are remnants of ancient lakes that have dried up over time. The Kalahari is an important source of water for many of the people living in the region, and it is also a popular tourist destination.