The Cotahuasi Canyon, the deepest in the world with 3354 metres, is located in the Northern part of the Department, in the Province of La Union. It is almost twice the depth of the Grand Canyon in the United States and it extends from the foothill of the Snow-capped Solimana Mountain up to the confluence of the Cotahuasi and Ocoña Rivers.

The Cotahuasi Valley is situated at 379 kilometres from Arequipa, a 12-hour drive approximately. The road is full of a great variety of sceneries that increase its beauty thanks to the vigilant presence of the Snow-capped Coropuna and Solimana Mountains.

The weather diversity in this region has helped creating the adequate habitats for a variegated flora and fauna. Species such as the Andean condor (Vultur gryphus), the vicuña (Vicugna vicugna) and the guemul (Hippocamelus antisensis) have found their ideal home in the depths of the Canyon.