The Colca Canyon is pretty firmly on the tourist trail for a solid variety of reasons. Second-deepest canyon in the world – between 3250 to 4160 metres deep. Largest number of wetlands in the Andes.The Colca River that bisects the canyon runs 129 km. long and empties into the Pacific Ocean. Some pretty rugged trekking … More The Colca Canyon: The Condors Were a Bonus