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The blue waters of Costa Rica’s Río Celeste: Mystery solved
Blue rivers
5799 views
Blue rivers
5799 views

The blue waters of Costa Rica’s Río Celeste: Mystery solved

Laianer Arias - August 30, 2013

The turquoise tones of Río Celeste (Spanish for "Blue River") – one of Costa Rica’s most prominent natural jewels – "is mostly an optical phenomenon, not a chemical effect in…