Trivia: Where is South America’s “river of five colors”?
Argentina
Bolivia
Paraguay
Colombia
The correct answer is Colombia
So why is this answer correct? : The vibrant colors of Colombia’s Caño Cristales (also known as “the river of five colors” or the “liquid rainbow”) appear in the river from June through November. A rare plant called macarenia clavigera grows along the riverbed, and the color of the plant varies according to sunlight, temperature, and rainfall — meaning it changes from one year to the next.