
9. Caño Cristales – Colombia
Often called the “River of Five Colors,” Caño Cristales appears red, yellow, green, blue, and black depending on the season.
Aquatic plants known as Macarenia clavigera bloom beneath clear water, giving the river its striking red hue during specific months.
It’s sometimes referred to as the most beautiful river in the world—and it’s easy to see why.
