Caño Cristales is called the "most beautiful river in the world" and especially among Colombians, who consider it one of its great natural treasures or "the river of the five colors"; But some also refer to this strange flow, located in the Natural Park of the Sierra de la Macarena department of Meta, in a more poetic way: "the river that escaped from Paradise" or "the rainbow that melted" . Everything is due to the incredible color palette that floods its waters during the driest months that's go from July to November. The red and fuchsia color is caused by a type of native algae that develops especially during those months in which the rains fall. But there are no shortages between the pools, waterfalls and meanders that make up this 100-kilometer-long stream of yellow, green, blue and black.