Hike into Tenorio Volcano National Park to see Río Celeste’s impossible blue waters and visit a sloth sanctuary on a single full-day tour. Expect rainforest trails, mineral-rich pools, and a moderate 3–4 km loop with interpretive guiding.
More ways to explore the area's outdoor wonders
You step from the minivan into humid mountain air, and the forest swallows sound — leaves whisper, birds call, and distant water threads the valley. The trail into Tenorio Volcano National Park ascends through layered rainforest: moss-draped trunks, ferns brushing your calves, and the constant possibility of a sloth blinking from a high limb. After a steady climb the river appears, impossibly blue, as if the water itself decided to wear a coat of sky.
Difficulty
moderate
Duration
6–7 hours
Fitness Level
Moderate; participants should be comfortable walking 3–4 km on uneven terrain and climbing stairs
Wildlife
History
Tenorio’s landscapes are shaped by volcanic activity; local communities have long regarded the river’s blue as a natural wonder and the park was set aside to protect its unique geology and biodiversity.
Conservation
The river’s color depends on precise mineral chemistry—sticking to trails, avoiding pollutants, and choosing small-group tours help minimize human impact.
Reserve your spot on the RIO CELESTE HIKE +SLOTHS & WILDLIFE WATCHING Combo today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start early to avoid clouds
Morning visits are cooler and drier; cloud build-up in the afternoon can obscure views and make trails slippery.
Wear waterproof hiking shoes
Trails can be muddy and rocky with boardwalks and steps—good traction prevents slips.
Protect the river chemistry
Avoid soaps, shampoos, or sunscreen entering waterways—Río Celeste’s color depends on delicate mineral balance.
Bring binoculars for wildlife
Sloths and tropical birds are often high in the canopy; a small pair of binoculars improves spotting chances.
Waterproof hiking shoes
Grip and foot protection for muddy, uneven volcanic trails.
Light rain jacket
Quick protection from sudden tropical showers and mist near waterfalls.
rainy-season
Reusable water bottle (1–2L)
Stay hydrated on warm climbs; bottled water may be provided but refill to reduce waste.
Insect repellent and sunscreen (reef-safe)
Repellent for lowland bugs; use biodegradable sunscreen to protect fragile waterways.