This river of 62.14 miles long and only
0.01 miles wide we can find in the Natural
Macarena National Park in Colombia.
Biological declared World
Heritage Site.
Furthermore you have the
possibility to find from
pictographs and
petroglyphs of the ancient
cultures of the region.
The colors in its bed are
produced by the presence of
abundant algae on it and
depending on time of year
was either intensify color.