1Caño Cristales
In central Colombia, Caño Cristales is a river that glows with brilliant shades of red, pink, green, and yellow for several months each year, earning it the nickname “River of Five Colors.” Much of the red and pink comes from an aquatic plant called Macarenia clavigera, while green algae and vegetation, yellowish sand, and dark rocks add other colors. During the rainy season, high water levels limit the sunlight reaching the plants, while the dry season can leave them exposed to the air. Between these seasons, when the water is shallow enough for sunlight to reach the plants but deep enough to keep them submerged, their colors become especially vibrant. The river's exceptionally clear water reveals this colorful landscape beneath the surface.


