Salar de Uyuni is the largest incredible salt flats in the world. It comprises over 12,000 sq km in the Potosi region. The salt is over 10 meters thick in the center. It is estimated to have a reserve of 10 billion tons of salt.
Some 40,000 years ago the region was covered by the giant salt lake Minchin. At some point the lake dried, leaving behind two small lakes (Poopó and Uri Uri) plus two salt lakes: Coipasa and Uyuni.
Nowadays in the dry season, the salt planes are a completely flat expanse of dry salt, but in the wet season, it is covered with a thin sheet of water that is still drivable.
Photographers flock here to capture the unique landscape. it is indeed visually captivating place, one of the most stunningly beautiful places you will ever come across in Bolivia and South America.