নদীর নাম ক্যানো ক্রিস্টালেজ। কলম্বিয়ার লা ম্যাকারেনা শহরের কাছে এই নদীটি। নদীটি সম্পর্কে লেখা আছে-

The Caño Cristales site, located about two hours walk from the town of La Macarena, will be open to visitors until November 10, when the summer season dries out the algae and the river loses it magnificent colours.

So far, some 1,000 people have visited Caño Cristales, including around 100 foreign tourists.

According to new regulations visits to the site are made up of groups of up to 20 people, taken throughout the day by four guides. The tours will follow four clearly marked and authorized paths and one is no longer permitted to stay overnight or cook, as this was ruining the area previously.
...............................................................................................

During Colombia's wet season, the water flows fast and deep, obscuring the bottom of the river and denying the mosses and algae that call the river home the sun that they need. And during the dry season there is not enough water to support the dazzling array of life in the river. But during a brief span between the wet and dry seasons, when the water level is just right, the many varieties of algae and moss bloom in a dazzling display of colors. Blotches of amarillo, blue, green, black, and red - and a thousand shades in between - coat the river.

বাংলায় টাইপের সময় নাই, লাঞ্চে যেতে হবে