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Lying in the heart of the verdant rainforest in Tenorio Volcano National Park, the Rio Celeste (Blue River) is one of the most remarkable natural assets of Costa Rica. It is thought that the surprising azure color of the river is caused by minerals in the rocks of the river bed, combined with reflected sunlight.
For one of the most rewarding photo opportunities of your Costa Rica vacation, you will need to take on a fairly challenging 4.5 mile hike – the trail will reward you with views of virgin rainforest, thermal springs, and a startlingly blue lagoon. A shorter 1-mile hike directly to the Rio Celeste Waterfall is also available from the entrance of the park. Organized tours to Rio Celeste are available from La Fortuna. Rio Celeste Map
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