When he was twelve years old, Andres Ruzo was told a strange story by his grandfather: Spanish conquistadors that went deep into the Amazonian rainforest in search of gold found a river so hot that it boiled from below.
Years later, as a graduate student in geophysics, Ruzo wondered if the legend of the Amazonian boiling river could be true.
But when he approached his senior colleagues, Ruzo's idea was dismissed as crazy - the Amazon was hundred of miles away from any active volcano. There couldn't be such a thing ... or could there?
Rizo himself couldn't quite believe that a boiling river in the Amazonian rainforest could exist ... until he saw it himself:
The river turned out to be no legend at all, but the sacred geothermal healing site of Mayantuyacu, nestled deep in the Peruvian rainforest and protected by a powerful shaman.
Up to 82 feet (25 meters) wide and 20 feet (six meters) deep, the river surges for nearly 4 miles at temperatures hot enough to brew tea or cook any animals unfortunate enough to fall in. And yes, a small portion of it is so hot that it actually boils. There are documented hot springs in the Amazon, but nothing nearly as large as this river.