Entering the -so called- 'Valley of the Volcanoes" of Andagua means going back several geological eras to witness some outstanding phenomena that only happen in two places In the world: the Canary Islands and In this Arequipa valley.
The Andagua river valley runs along the foothill of the great Coropuna volcano, the highest in Peru and the tenth highest in South America. Geothermal activity in this area has given birth to about 80 volcanoes, all of them extinct, which give this area a moonlike aspect. Later, the Andagua river disappears in a 17 km (10.5 miles) stretch, running under the ground between the Chachas and the Mamacocho lagoons before flowing into the Colca. Andagua can be reached only by highway from the west.
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