Described as the 'Louvre of the Desert', the magical Tsodilo Hills in Botswana’s Kalahari are home to one of the largest concentrations of Bushman rock art in the world. The area, visited by few, is respected by the San people of the Kalahari as a place of worship by ancestral spirits. Over 4,500 paintings have been found. This place is best avoided when it’s too hot (i.e October/December) and best out of the rains as it is effectively a walking camping trip.