CAT Colca Canyon tours visit the impressive Colca Canyon not far from the city of Arequipa in the Southern Peruvian Andes. This dramatic canyon is over twice the depth of the Grand Canyon in the United States and its floor is dotted with small villages that still cultivate their crops on stepped terraces and maintain many of their ancestral traditions. Another inhabitant of the canyon is the majestic Andean condor, with an average wingspan of 300cm (around 9ft) these incredible birds glide on the warm thermal currents that run through the canyon. It is often possible to see them at quite close quarters from viewing spots high on the canyon walls. Class Adventure Travel offers a range of luxury Colca Canyon tours.