The Cotahuasi Sub-Basin Landscape Reserve (RPSCC) is located in La Unión province, 10 hours by car from Arequipa. Visitors to the valley can enjoy traditional towns, hot springs, the Sipia waterfall and the geological faults of the canyon. At 3,562 metres deep, it is one of the largest canyons in the world.
The Cotahuasi Sub-Basin is a representative sample of the tropical Andes in the south of Peru which, thanks to its location in the southern Andes and the upper reaches of the Ocoña river, has unique geographical characteristics that have led to biological diversity of global importance in each of its 12 life zones. These zones are scattered over an area that stretches from 950 masl, up the canyon to snow-capped mountains at 6,100 masl.
Nearby, there are temples and archaeological zones with extensive ancient terraces that demonstrate the ingenuity of the native people in adapting to their environment while coexisting in harmony with the ecosystem.
The valley has impressive landscapes surrounded by the Coropuna and Solmana mountains. The Sipia Waterfall has a 150 metre free-fall and forms a permanent rainbow, to the delight of visitors. It is the perfect setting for adventure sports including trekking, canoeing, paragliding, hang-gliding, mountain biking, rock climbing, fishing and horse riding.