Mona Island: The galápagos of Puerto Rico

Off Mayagüez, the unique Isla Mona teems with giant iguanas, three species of endangered sea turtles, red-footed boobies, and countless other seabirds. It features a tabletop plateau with mangrove forests and cacti, giving way to dramatic 200-foot-high (61m) limestone cliffs that rise above the water and encircle much of Mona.

A bean-shaped pristine island with no development at all, Mona is a destination for the hardy pilgrim who seeks the road less traveled. It lies in the middle of the Mona Passage, about halfway between Puerto Rico and the Dominican Republic. A pup tent, backpack, and hiking boots will do fine if you plan to forego the comforts of civilization and immerse yourself in nature. Snorkelers, spelunkers, biologists, and eco-tourists find much to fascinate them in Mona's wildlife, mangrove forests, coral reefs, and complex honeycomb, which is the largest marine-originated cave in the world. There are also miles of secluded white-sand beaches and palm trees.


Uninhabited today, Mona was for centuries the scene of considerable human activity. The pre-Columbian Taíno Indians were the first to establish themselves here. Later, pirates used it as a base for their raids, followed by guano miners, who removed the rich crop fertilizer from Mona's caves. Columbus landed in Mona during his 1494 voyage, and Ponce de León spent several days here en route to becoming governor of Puerto Rico in 1508. The notorious pirate Captain Kidd used Mona as a temporary hide-out.

Mona can be reached by organized tour from Mayagüez. Camping is available at $10 per night. Everything needed, including water, must be brought in, and everything, including garbage, must be taken out. For more information, call the Puerto Rico Department of Natural and Environmental Resources at tel. 787/999-2200.

The Puerto Rico government invested $1.7 million on a new visitor's center on Mona, which includes living quarters for researchers and park rangers.


To reach the island, contact Adventures Tourmarine, Rte. 102, Km 14.1, Playa Joyuda, Cabo Rojo (tel. 787/375-2625). Captain Elick Hernández operates boat charters to Mona with a minimum of 10 passengers, each paying $150 for a round-trip day adventure. Acampa Nature Adventures (Av. Piñero 1221, San Juan; tel. 787/706-0659) runs a 4-day, 3-night trip to Mona, which includes all equipment, meals, and guides. The trips are run in groups with a 10-person limit. Price depends on how many people are in the group. San Juan dive shops, such as Ocean Sports, Av. Isla Verde 77, (tel. 787/268-2329), will also run dive trips off Mona Island. However you plan to get there, make your reservations well in advance.

Warning:  The passage over is extremely rough, and many passengers prone to seasickness take Dramamine the night before the boat ride. There is no bottled water on the island, so bring your own. Also bring food, mosquito repellent, and even toilet paper. Alcoholic drinks are forbidden. While Mona's uninhabited landscape and surrounding turquoise water are beautiful, this can also be a dangerous, unforgiving place. In 2001, a Boy Scout got lost and died from hypothermia; in 2005, a psychologist suffered the same fate.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.