This full-day tour from Guanacaste combines a cooling swim at Llanos de Cortes, a guided hike to the otherworldly blue of Rio Celeste in Tenorio Volcano National Park, and a visit to a local sloth sanctuary. Read on for what to expect, history, and practical tips.
More ways to explore the area's outdoor wonders
You step off the minibus into humid air scented with wet earth and citrus; rainforest canopy closes in and the river ahead seems to glow. The day moves like a sequence of short acts: a cool swim at Llanos de Cortes, a rain-forest hike to an improbable turquoise cascade, then a slow, patient visit with rescued sloths at a rural sanctuary.
Difficulty
moderate
Duration
12 hours
Fitness Level
Moderate fitness—comfortable walking on uneven terrain for 2–3 hours, plus travel time
Wildlife
History
Tenorio’s landscape is shaped by volcanic activity; the river’s blue color is a geological quirk of mineral-rich springs mixing downstream and has inspired local folklore about a deity’s washed cloth.
Conservation
Tenorio and Llanos de Cortes are protected; stay on trails, pack out trash and avoid swimming at restricted areas to minimize erosion and habitat disturbance.
Reserve your spot on the Rio Celeste Hiking, Sloth Sanctuary & Llanos de Cortes Waterfall Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Hydrate early and often
Carry at least 1–2 liters of water in a reusable bottle; refill options are limited between stops.
Wear sturdy, closed-toe shoes
Trails are muddy and uneven—hiking shoes with good tread make the 2‑hour hike far easier.
Bring rain protection
Afternoon storms are common; a compact rain shell or poncho keeps you dry and your camera safe.
Respect wildlife viewing rules
Keep distance at the sloth sanctuary and follow guide instructions—no flash photography and no feeding.
Sturdy hiking shoes
Provides traction on muddy park trails and rocky viewpoints.
Light waterproof jacket
Keeps you dry during tropical showers and protects gear from mist at viewpoints.
summer
Reusable water bottle
Hydration through the long day—refill to reduce plastic waste.
Insect repellent and sunscreen
Protects against mosquitoes in the rainforest and strong sun in open sections.
summer