Colombia, Caños Cristales
Commonly known as “the River of Five Colors”, “The Liquid Rainbow” or “the most beautiful river in the world”, Caño Cristales is a small river, 100km long and 20 meters wide, located the Sierra de la Macarena in Colombia. To be exact, it is located 300km South of Bogotà, and 220 km from Villavicencio, the biggest closest city. Most of the year this river looks just like any other river, but for a brief period of time every year, the river blossoms in an explosion of yellow, red, blue, black, and green.
Between the months of September and November, that is to say between the wet and dry seasons, the water level drops, and the warmth of the sun leads to the blooming of the algae and moss on the bottom of the river. One algae in particular, the Macarenia clavigera, turns a brilliant red. Along with red, the river appears to be yellow from the sand, green from the plants, and blue from the reflection of the sky on the water.
Caño Cristales is located in a remore and isolated area inside the Serrania de la Macarena National Park. It is an area of great diversity, that besides a great variety of plants, it includes 420 different species of birds, 10 species of amphibians, 43 species of reptiles, and 8 species of primates. Oddly enough, however, no fish lives inside the river.