Hot springs and geysers
Another striking characteristic of the Colca Valley is the presence of hot springs; from the city of Caylloma to Canco, the water temperature gradually decreases, and the chemical composition changes, too, from sulfurous to carbonated, with the majority being Ca, Zn, Fe, and C, with salts and other minerals. The maximum temperature is 85ºC at the spring.
Since there are geysers at Pinchollo, Cabanaconde, and Tapay, we can deduce the existence of nearby volcanic activity. A geyser is a spring characterized by the discharge of water to the surface, generally through a fissure, and the high temperature is owed to the water’s contact with hot rocks.