Salar de Uyuni, Altiplano desert, Bolivia.
Uyuni is the largest and most famous salar in the world. It is more than one hundred miles across between the village of Llica and the town of Uyuni. Most of its surface is dry and hard like ice. In the center its depth has been estimated at more than 30 meters and it is the world’s largest reserve of salt. Only a few islands punctuate the perfectly white horizon.