Caño Cristales - Crystal river or river of five colors, as it is called by the locals, starts at the south of the mountain chain Macarena, Columbia, and flows eastward to its confluence with the river Guayabero. In the box Caño Kristales are found five colors: yellow, blue, green, black and red. All of them represent a waste product of different algae, and, depending on the season, the color saturation is weakened or strengthened.
The Mighty Amazon & River Dolphins -Wild South America
The Amazon River in South America is generally regarded as the second longest river in the world and is by far the largest by waterflow with an average discharge of about 209,000 cubic meters per second (7,381,000 cu ft/s), greater than the next seven largest rivers combined (not including Madeira and Rio Negro, which are tributaries of the Amazon). The Amazon, which has the largest drainage basin in the world, about 7,050,000 square kilometres (2,720,000 sq mi), accounts for approximately one-fifth of the world's total river flow. The river would have the biggest drainage basin in the world even just counting Brazil, which it enters with only one-fifth of the volume that will finally be discharged into the Atlantic.