El Tatio is a famous geyser field situated within the Andes Mountains of northern Chile at a height of 4,300 meters (13,780 feet). The climatic conditions and high altitude make the geyser field one of the most extreme environments on Earth.

With over 80 active geysers, El Tatio is also the largest geyser field in the southern hemisphere and the third largest field in the world. Despite the icy cold weather many visitors take a dip in the hot springs.