The Cave of the Swimmers, Egypt. figures are about the size of a human hand. The cave and rock art was discovered in 1933 by László Almásy. The Neolithic rock paintings of people swimming, estimated to have been made 10,000 years ago during the most recent Ice Age. When found many people did not believe they could represent actual swimmers. In 2007,Eman Ghoneim discovered an ancient Mega-Lake (30,750 km²) buried beneath the sand of the Great Sahara in the Northern Darfur region, Sudan.