Indio Maíz Biological Reserve

The Indio Maíz Biological Reserve begins across the river from El Castillo and extends south and east through some of the most pristine primary rainforest left in Central America. It is the main reason serious nature travellers make the long journey down the Río San Juan. Guided hikes can be arranged through the village — local guides know where to look for wildlife and which trails are passable in wet season.

Even a short walk into the forest edge reveals the density of life here: the bird calls alone are extraordinary, and the vegetation shifts quickly from riverside scrub to true old-growth canopy. Deeper expeditions require more planning and several days. Be realistic about conditions: the reserve gets very heavy rainfall and the trails can be demanding. The payoff, for those who put in the effort, is wildlife encounters of a kind that have largely disappeared from the rest of the isthmus.

things to do nature hiking wildlife
A story
Indio Maíz covers around 3,000 square kilometres of primary rainforest, making it the second-largest protected forest in Central America. It is home to jaguars, tapirs, giant anteaters, manatees, and more than 600 bird species — including several found nowhere else in Nicaragua. Because access is limited and the reserve has no internal road network, the wildlife here has experienced substantially less pressure than in most Central American parks.