Hiking trail at Guánica Dry Forest.

Popular Hiking Trails in Puerto Rico

Take a walk on the wild side.

Puerto Rico is renowned for its beaches and historic Old San Juan, but what many don't realize is just how numerous the natural areas are for hiking, camping, and other outdoor adventures. On the island's 3,500 square miles there are national and state forests, nature reserves, cave systems, and dozens of different ecosystems spanning coastal valleys, the karst region, wet and dry forest, and the United States' only tropical rainforest.

If you want to get out and enjoy the natural beauty of the island, here's a handy guide to help you find the perfect trail.

A youth group visits El Yunque and its natural pools.

El Yunque National Forest

Río Grande

One of the most popular destinations in Puerto Rico for locals and visitors alike is El Yunque National Forest. This is the only tropical rainforest in the U.S. National Forest System and also one of the most biodiverse spots on the island thanks to the park’s 240 different species of plants. Whether you're looking to go birdwatching, swim in natural pools under waterfalls, or test your endurance on a challenging hike, El Yunque has trails for all types of adventures. Some of the trails that are currently open include La Coca Trail, Baño Grande, Angelito and Puente Roto, El Toro, Mt. Britton, and El Yunque Peak. There are also a handful of options for tour companies who can arrange half-day or full-day trips from San Juan to the park, if you’d prefer to have experts handle the planning and driving.

A woman walks through a hiking trail in Guánica's Dry Forest.

Guánica Dry Forest Reserve

Guánica

On the south side of the island, you'll find the opposite to El Yunque’s rainforest: the Guánica Dry Forest. The southern side of the island is more arid — with cacti and other plants better suited to the desert-like conditions — and you’ll often see red-tailed hawks and turkey vultures leisurely circling against a perfectly blue sky. There are numerous trails in the reserve and the ranger at the entrance can provide you with a map. Among the most popular: Ballena leads all the way down the mountain to the beach, La Cueva to limestone caves, and Fuerte Caprón to a historic fort overlooking the coast.

Aerial view of the Guajataca Forest and the beach.

Guajataca Forest

Isabela

Located in the town of Isabela, the Guajataca Forest has 27 miles of trails and the two most frequently used are the Interpretative Trail and the trail to Cueva del Viento (Cave of the Wind). You can easily do both in the same day, as well as explore the cave, which is full of otherworldly stalagmite and stalactite structures (as well as bats!). Follow Trail #1 to the cave then take the Interpretative Trail back to the parking area off of PR-446. There's even a side trail to an observation tower as a bonus. The trail is easy to walk but bring sturdy shoes with good traction and flashlights if you plan on exploring the cave.

Hiking trail at Toro Negro State Forest.

Toro Negro State Forest

Jayuya/Ponce/Villalba/Orocovis/Ciales/Juana Díaz

The nearly 7,000 acres of Toro Negro State Forest is spread over six different municipalities and includes four types of forest (tabonuco, palm, Micropholis Buchenavia, and a cloud forest), the three highest peaks of the island (Cerro de Punta, Cerro Jayuya, and Cerro Rosa), a lake, two natural swimming pools, nine rivers, and numerous waterfalls. To hike and camp there, visit the ranger station on Route 143 KM 32.4 in Villalba. Most of the trailheads are concentrated in this area, and the most popular (and currently open) are El Bolo, which leads to a stone tower on the top of a mountain, and Charco La Confesora, which has a trailhead at the Toro Negro camping grounds.

Cambalache State Forest

Arecibo

Cambalache State Forest is the perfect setting for a leisurely hike in nature (mountain bikes also welcome), or enjoy birdwatching and camping. The facilities are easily accessible and include parking, bathrooms, picnic tables and gazebos, and there's even an ornithological center that opens on weekends. During your hike you can spot more than 150 types of trees and shrubs, of which 15 are endemic and 10 are rare or endangered. Birding is also popular here since you can spot 45 species of birds, including 12 of the 17 that are endemic to Puerto Rico.

The hike to árbol solitario takes more than 90 minutes

The name of the mountain itself is Cerro de los Cielos but the trail gets its name from the solitary mango tree at the top which is visible from the highway

Árbol Solitario

Salinas

Visible from highway PR-52 just past the Jíbaro Monument in Salinas, there is a lone tree on the top of a tall mountain called Cerro de los Cielos. Until 2016, hiking up to the Solitary Tree was very controversial because people would park their cars on the highway emergency ramp, and since the trail wasn't properly marked many would become lost. Now the "official" trailhead is off PR-1 and takes one hour to 90 minutes to complete via a steep, challenging trail. The view of the southern mountain range stretching all the way to the Caribbean Sea makes it all worthwhile. People have attached swings to the tree and there are also flags near the top making it a perfect place for a photo op.

Cabo Rojo Wildlife Refuge

Cabo Rojo

The Cabo Rojo Wildlife Refuge was established in 1974 in southwestern Puerto Rico and is home to a diversity of flora and fauna that visitors can explore via the park's hiking and biking trails. Much of the refuge consists of subtropical dry forest, meaning conditions are hot and arid most of the year. It's a very popular destination for birdwatching, particularly in the park’s unique salt flats. The Wildlife Refuge is open from Monday to Saturday, while the Salt Flats Interpretative Center is open Thursday to Sunday. Bring water and sunscreen, sturdy hiking shoes, and a camera.