Follow a rainforest trail to a chemical phenomenon: two streams merge and the Río Celeste turns striking turquoise. This full-day hike combines geology, a waterfall plunge, and a riverside lunch with guided local insights.
More ways to explore the area's outdoor wonders
A humid breath of forest meets you before the trail does: leaf litter muffles footsteps, and the stream ahead dares you with the faintest flash of turquoise. The Río Celeste hike at Tenorio Volcano National Park pushes through primary and secondary rainforest, threading boardwalks and packed-earth switchbacks to a sequence of mineral-rich highlights — Los Borbollones, the milky blue confluence of Los Teñideros, and the crescendo: Río Celeste Waterfall.
Difficulty
moderate
Duration
6–8 hours
Fitness Level
Suitable for those with basic hiking stamina; comfortable walking on uneven, sometimes steep terrain for several hours.
Wildlife
History
Tenorio Volcano National Park was established to protect the volcanic complex and the unique Río Celeste phenomenon, preserving lowland and montane rainforest used historically by neighboring farming communities.
Conservation
Park rules prioritize staying on trails and avoiding pollutants; guided tours support local conservation by limiting visitor impact and funding maintenance.
Reserve your spot on the Río Celeste Nature Hike and Swimming experience at the blue river today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start early
Arrive at trailhead in the morning to secure parking, cooler temperatures, and softer light for photography.
Grip and traction
Wear sturdy hiking shoes with good tread — boardwalks and muddy switchbacks can be slippery after rain.
Respect water chemistry
Avoid using sunscreen or insect repellent before swimming; the river’s blue depends on delicate mineral balances.
Bring cash for local stops
Small vendors and farm stops may accept only cash for souvenirs or coffee — keep small bills handy.
Sturdy hiking shoes
Provides traction on muddy trails and comfort during several hours of walking.
Quick-dry swimwear and towel
Allows you to enjoy the river swim without long wet clothes afterwards.
summer
Light rain jacket
Protects against sudden tropical downpours common in the wet season.
winter
Reusable water bottle with filter
Keeps you hydrated on the trail and reduces plastic waste; filtered bottles are useful if refills are limited.