We Often Say,

'it is boiling hot',

  when talking about air temperature, but how about a river, that is boiling hot? so hot in fact the temperature is 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 almost actually boils, here is the story,

when just 12 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, 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, there are documented hot springs in the Amazon, but nothing nearly as large as this river, for a fascinating look at this river have a look here, or at this Nat Geo article, how fascinating.