Explore Puerto Rico’s Isla de la Mona: Natural Wonders & Wildlife

Some call Isla de la Mona the Galápagos of Puerto Rico. Like the Galápagos, a handful of species—rare turtles, birds and other wildlife—are found only on this island. Unlike the Galápagos, Mona is accessible only by boat, and there are no hotels or towns. The island is officially uninhabited and authorities limit the number of visitors to a maximum of 100 at any one time.

For centuries Mona was a haven for sailors and pirates. In 1698 Captain Kidd is recorded to have stopped here, and local lore suggests he may have hidden treasure taken from the captured ship Quedagh Merchant somewhere on the island.

Camping on Mona Island is permitted but strictly regulated. Visitors must obtain permits well in advance and are responsible for carrying in and carrying out all gear and waste, including empty food packages, water bottles and toilet paper. A handful of licensed tour operators run day trips and overnight excursions to Mona, which lies about 41 miles off Puerto Rico’s west coast. The crossing through the Mona Passage takes roughly three hours and can be choppy.

The island itself is about seven miles long and four miles wide. It has a dry, hot climate, with temperatures typically near 90 degrees Fahrenheit year-round. Due to its isolation and fragile ecosystems, visitors are asked to follow conservation rules, respect wildlife habitats and leave the island exactly as they found it.

Highlights for many visitors include exploring coastal cliffs and sea caves, spotting endemic bird species and sea turtles, and experiencing the solitude of a landscape largely untouched by development. Because of limited facilities and protected natural areas, planning ahead is essential: secure permits, pack adequate water and supplies, and choose a reputable operator if you prefer an organized trip.

Visiting Isla de la Mona offers a unique opportunity to see rare wildlife and rugged coastal scenery in a place few travelers reach. With careful preparation and respect for local regulations, a trip to Mona can be a memorable and responsible way to experience one of Puerto Rico’s most remote natural treasures.