A day trip from San José brings you into Tenorio Volcano National Park to witness Rio Celeste’s surreal blue waters and nearby sloth habitat. This guide explains what to expect on the trails, the geology behind the color, and practical tips for a safe, low-impact visit.
More ways to explore the area's outdoor wonders
You step off the air-conditioned van into humid air threaded with the scent of wet leaf litter and fresh volcanic rock. The trail into Tenorio Volcano National Park climbs beneath a closed canopy; light filters through moss and ferns, and a narrow trail of roots and stone directs you toward a sound that gets louder — the waterfall’s rush. At the viewing platform, the river turns an improbable sky-blue, a color that seems to push at your eyes.
Difficulty
moderate
Duration
8 hours (tour)
Fitness Level
Moderate fitness needed: able to hike 3–4 km on uneven, sometimes steep and muddy terrain
Wildlife
History
Tenorio Volcano’s landscape was shaped by volcanic activity that created fumaroles and mineral-rich streams; the park protects water sources and cloud forest fragments used by local communities.
Conservation
The park is managed to preserve watershed quality and endemic species—stay on trails, pack out waste, and avoid introducing soaps or sunscreen into waterways.
Reserve your spot on the Rio Celeste Waterfall at Tenorio Volcano and Sloth Watching Tour From San Jose today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start early for wildlife
Morning light and quieter trails improve chances of seeing sloths, toucans, and active monkeys before afternoon rains set in.
Wear grippy, waterproof shoes
Trails are uneven and frequently muddy; shoes with good tread and waterproofing keep you steady on roots and wet rocks.
Bring water and snacks
Although tours typically include lunch, carry at least 1–2 liters of water for the hike and quick energy bars for steep sections.
Respect viewing platforms
Stay on marked trails and platforms to protect fragile banks and the river’s water quality—avoid swimming or entering the river.
Sturdy hiking shoes
Provide traction on wet roots, mud and rocky steps on the park trails.
Light rain jacket
Afternoon showers are common—packable protection keeps you dry without extra weight.
fall
Water bottle (1–2 L)
Hydration is important on a full-day tour with hiking and warm, humid conditions.
summer
Binoculars or zoom lens
Helps with sloth and bird watching from trails and viewing platforms.