Follow a bilingual naturalist through Tenorio Volcano National Park to the Río Celeste waterfall, where two streams meet and the river inexplicably turns bright blue. Expect rainforest trails, fumaroles, wildlife sightings, and practical tips for a full-day hike.
More ways to explore the area's outdoor wonders
A morning on the Río Celeste trail begins with damp leaf litter underfoot and the jungle’s humidity pressing close — the river ahead calls like a bright promise. As the guide leads the group through lowland rainforest, the path slides between ferns and strangler figs until two ordinary streams converge and the water, as if on cue, turns an impossible turquoise.
Difficulty
moderate
Duration
6–8 hours
Fitness Level
Moderate fitness required: ability to hike uneven jungle trails for several hours, with short steep sections and stairways.
Wildlife
History
The Tenorio area is shaped by volcanic activity and has been used historically by nearby farming communities; park designation protects its geothermal features and rainforest.
Conservation
Visitor management focuses on limiting trail erosion, prohibiting swimming in sensitive pools, and promoting refillable bottles to reduce single-use plastic in the park.
Reserve your spot on the Rio Celeste Hiking from Arenal - National Park Guided Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring a refillable water bottle
There are no reliable potable taps on the trail; refill before you go and carry at least 1–2 liters per person.
Wear sturdy, grippy footwear
Trails include wet roots, mud, and boardwalks — trekking shoes with good tread improve comfort and safety.
Pack a lightweight rain jacket
Afternoon cloudbursts are common in the region; a compact rain shell keeps you dry without weighing you down.
Keep distance from fumaroles
Steam vents release hot, sulfurous gases and can be unstable; obey closures and your guide’s safety instructions.
Trekking shoes or sturdy trail runners
Provide traction on muddy roots and uneven terrain.
summer
Refillable water bottle (1–2 L)
Hydration is essential and refill stations are limited; guides often recommend reusable bottles.
Light rain jacket or poncho
Protects against sudden tropical showers and keeps clothing dry for the return hike.
winter
Binoculars or telephoto lens
Helps spot howler monkeys, toucans, and motmots in the canopy from viewpoints.
spring