Colca Canyon is a canyon of the Colca River in southern Peru, located about 160 kilometers (99 mi) northwest of Arequipa. It is Peru's third most-visited tourist destination with about 120,000 visitors annually. With a depth of 3,270 meters (10,730 ft), it is one of the deepest in the world. The Colca Valley is a colorful Andean valley with pre-Inca roots, and towns founded in Spanish colonial times, still inhabited by people of the Collagua and the Cabana cultures. The local people maintain their ancestral traditions and continue to cultivate the pre-Inca stepped terraces.