Today"s photo brings us to the banks of Caño Cristales, the "liquid rainbow" that cuts a prismatic path through the heart of Colombia. From June through November, when the clear water is low, the abundant underwater plants that cover the riverbed show off their red, yellow, green, and blue hues. The star of the show—especially in this photo—is Macarenia clavigera, a riverweed that ranges from bright red to deep crimson or purple depending on its intake of sun rays. In August and September, when the florid flora is at its peak, the river"s a coveted nature excursion: Because the ecosystem is so fragile, visits are limited to guided tours.
Go with the rainbow flow
Today in History
More Desktop Wallpapers:
-
It s Bermuda s big day
-
World Olive Tree Day
-
Black Fell in England s Lake District
-
World Turtle Day
-
On the wings of the Wright brothers
-
Deep in the North Woods wetlands
-
Spring blooms in the Netherlands
-
Beware the Ides of March
-
Celebrating Bike to Work Week, May 14-18
-
Kalalau Beach on the Nā Pali Coast, Kauai, Hawaii
-
National Hummingbird Day
-
It s aboat time for the Barcolana
-
World Bicycle Day
-
Seven Magic Mountains art installation, Jean Dry Lake, Nevada
-
World Book Day
-
Moody skies over Valletta
-
Rock of ages
-
A new tradition in London
-
Longtailed widowbird at Rietvlei Nature Reserve, South Africa
-
A stunning national park in winter white
-
Bathing huts in Skåne County, Sweden
-
Hey, who’s in charge here?
-
In Texas, even the riverbend is big
-
Bringing the moon to Earth
-
Gone ‘lightseeing’ in Berlin
-
Happy Birthday, J.R.R. Tolkien!
-
Holidays in the Venetian Lagoon
-
Celebrating sea otters
-
Celebrating 78 years of Everglades National Park
-
International Archaeology Day
Bing Wallpaper Gallery

