Moray, in the Sacred Valley near Cusco, is the site of an amphitheatre, believed to be constructed by the Incas as a laboratory for testing the viability of crops. Each terrace had its own micro-climate and had soil imported from different parts of the surrounding countryside. The temperature difference between the top and bottom levels can be as much as 20ºC.
From Moray, staying in the Sacred Valley, we moved on to Maras and the salt mines. Access to the mines is via a narrow track into the valley.
The salt mines have been in use, apparently, since the time of the Incas. Salt water is fed in from an underground source and is channelled into the many filter pits before being harvested.
Click on any photo to enlarge.