A half-day expedition from Ometepe’s Biological Station combines a mossy waterfall crawl with chances to see sloths and endemic frogs along the southern slopes of Volcán Maderas. Expect steep, damp trail sections, expert local guides, and a cooling pool at the end of a roughly 2 km walk.
More ways to explore the area's outdoor wonders
You step out of the van and the air changes — warm, humid, heavy with green. The trailhead at the Biological Station on the southern flank of Volcán Maderas begins beneath a canopy so dense it softens sound; leaves drip like slow rainfall, and vines hang in hesitant curtains. Within minutes the jungle asserts itself: moss climbs trunks, bromeliads catch the light, and the path narrows into a series of slick rock steps that lead toward the sound of falling water.
Difficulty
moderate
Duration
4–6 hours
Fitness Level
Light to moderate fitness; able to handle short steep sections and uneven, slippery footing
Wildlife
History
Ometepe’s twin volcanoes have shaped human settlement for centuries—terraced farming and archaeological sites attest to long-term island habitation and volcanic influence.
Conservation
The Biological Station runs small-scale research and community education; visitors help by following trail rules, minimizing noise, and avoiding handling wildlife.
Reserve your spot on the Waterfall, sloth expedition, frogs Blue River also in Costa Rica today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear grippy shoes
Trail sections are steep and often muddy; approach the stream crossings with footwear that has reliable traction.
Bring a rain shell
Weather on Maderas can shift quickly—light showers make the trail slippery and a waterproof layer keeps you comfortable.
Move quietly for wildlife
Sloths and frogs are easily spooked; keep voices low and let your guide point out animals to increase sighting chances.
Respect sensitive habitats
Stay on the path, avoid touching amphibians, and carry out any trash to protect research areas at the Biological Station.
Trail shoes with good tread
Provides traction on muddy, mossy rock and supports ankles on uneven terrain.
summer
Light rain jacket
Protects from sudden downpours common on volcanic slopes during the rainy season.
summer
Reusable water bottle (1–2 L)
Hydration for the walk and travel time—tap water isn’t always available on the trail.
Lightweight binoculars or phone with zoom
Helps spot sloths, howler monkeys, and canopy birds without disturbing them.