Salar de Uyuni, with its 10,582 square km, is the world's largest salt flat. Walking on salt crystals the way you would sand on a beach or snow on a mountain was a pretty amazing experience, and the scenery was surreal.
Some 40,000 years ago, this was part of a giant prehistoric lake which then dried. It´s estimated to contain 10 billion tons of salt. We were able to observe the manual mining, drying and packing process, and were surprised to find that the labour-intensive process produced packets of table salt wich cost only US$1 per 50kg.
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