Salar de Uyuni - the largest salt lake in the world. It is located in the south of the desert plains of the Altiplano, Bolivia, at an altitude of about 3700 m. Its area is 10, 5 square kilometers. In the center of the thickness of the salt amounts to 10 meters. This lake contains more than 10 billion tons of salt. When Salar de Uyuni is covered with water, it reflects every cloud.