Every country, and the places worth the trip 26,398 places across 240 countries Guess the country
Meridiela.

Río Abajo State Forest

Karst forest near Utuado holding the aviary that has brought the Puerto Rican parrot back from near extinction.

Updated 16 October 2026

Typeforest
WhereUtuado
Nearest cityUtuado
Best seasonDecember to April
Time to allowHalf a day
Getting thereBetween Utuado and Arecibo on PR-10 and PR-621
EntryFree; aviary visits by arrangement

Río Abajo covers around fourteen hundred hectares of limestone karst forest between Utuado and Arecibo, mogotes and sinkholes covered in trees, and it holds one of the two aviaries breeding the Puerto Rican parrot. The species fell to thirteen known wild birds in 1975 and has been brought back through captive breeding and release; a free-flying population now exists in this forest. Trails run through the karst and a recreation area sits near the entrance.

Background

Río Abajo is one of the 20 state forests of Puerto Rico and belongs to the Department of Natural Resources. It covers 3,590 acres in the municipalities of Arecibo and Utuado, mostly subtropical wet and moist karst forest filled with mogotes and sinkholes, and it was named a National Natural Landmark in 1980. Besides its ecological value, the forest holds a number of archaeological sites.

Source: Wikipedia, "Río Abajo State Forest"

What you'll find

  • The Puerto Rican parrot - a released population in the forest, from a species down to thirteen birds in 1975.
  • The aviary - one of two breeding centres for the recovery programme.
  • The karst - mogotes, sinkholes and limestone forest across the reserve.
  • The trails - walking routes through the forest from the recreation area.

When to go

December to April is the drier season and the most comfortable. Early morning is best for hearing and seeing the parrots. Hurricane damage has closed sections in the past.

Things to know

Parrots are heard far more often than seen and sightings are not reliable. Aviary access is restricted and must be arranged; it is a working conservation facility. Some trails have been closed since hurricane damage.

Nearby

Lago Dos Bocas is nearby, and Arecibo is north.

Key facts

Local nameBosque estatal de Río Abajo (Spanish)
Heritage statusNational Natural Landmark
Location18.3397° N, 66.6997° W · map

Source: Wikidata, item Q3728423, read on 18 October 2026.

What to pack for Río Abajo State Forest

Chosen from what this place is for. Tap a kit for the full checklist.

  • Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
  • Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
  • Daypack with rain cover - 20-30 litres holds water, snacks, layers and a first-aid kit. Find on Amazon
  • Offline maps + a power bank - Download the trail before you lose signal; carry backup charge. Find on Amazon

Some links on this page are Amazon affiliate links - if you buy through them we may earn a small commission at no extra cost to you.

All packing kits

Plan your trip

Where to start if Río Abajo State Forest is going on the list.

Booking links on this page are affiliate links - if you book through them we may earn a small commission at no extra cost to you. It never changes what we write about a place.

Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

← More nature & outdoors in Puerto Rico

One place a week.

A short Friday email about one place worth knowing.