The park's heavenly blue river, waterfalls and lagoons are among the most spectacular natural phenomena in Costa Rica; as a result, the park is known to locals simply as Río Celeste (though it's officially named after the soaring 1916m Volcán Tenorio). From El Pilón ranger station at the park entrance, a 5km out-and-back hiking trail winds through the misty forest, taking in the park's highlights.
Parque Nacional Volcán Tenorio
Northwestern Costa Rica
Lonely Planet's must-see attractions
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Nearby Northwestern Costa Rica attractions
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2. Venado Caves
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