Pass the salt please...

The Salar de Uyuni covers an area of 12,000 km², making it the largest in the world. It's hypnotic, the salt is endless and the horizon wavers in the distance. At it's thickest point the salt is 8m deep.
We dragged ourselves out of bed at 5.30am to watch the sun rise over the salt flats, and then spent the morning driving and walking on the salt. We visited a couple of different 'islands' and had fun scrambling amoungst the cacti.
The day finished in Uyuni, where we visited the train graveyard - where all those hard working trains go to sleep.