The Salar de Uyuni (Bolovia) is the largest salt flat in the world. This surreal and unusual natural phenomenon is the result of a giant prehistoric lake (Lake Minchin) that dried about 40.000 years ago. La Isla del Pescado full of giant cactuses it is the only sign of life in miles, apart from thousands of flamingos that spend here several months to breed.
Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 square kilometers (4,086 sq mi). It is located in the Potosí and Oruro departments in southwest Bolivia, near the crest of the Andes, and is at an elevation of 3,656 meters (11,995 ft) above mean sea level.The Salar was formed as a result of transformations between several prehistoric lakes.