Isla de Mona, Puerto Rico

Isla de Mona is one of the Islands of Puerto Rico, often called “The Galapagos of the Caribbean” and one of the last true secret adventure destinations in the Caribbean.

Isla Mona / Mona Island - One of the Islands of Puerto Rico - Playa Sardineras

If you love adventure, cave exploring, a feeling of solitude, scuba diving, deep sea fishing, camping, and want to experience what it would be like in a secluded island, then Isla Mona ought to be on your Bucket List. You’ll find remnants of Taino Indian Village that once made the island their home on caves walls, petroglyphs, and throughout the trails. Isla Mona attracts many scientists and photographers, it’s truly a magnificent and unique sight. Isla de Mona is about 7 miles long and 4 miles wide.

Isla Mona is the third largest island on the Puerto Rico Archipelago which is made up of Vieques, Culebra, Isla Mona, Isla Desecheo, Monito and Caja de Muertos. This Caribbean gem is an ecological reserve managed and protected by Puerto Rico’s (DRNA) Department of Natural and Environmental Resources

Geography of Isla Mona

Isla de Mona lies on the Mona Passage just 41 miles off the west coast of Puerto Rico (Porta del Sol), 30 miles southwest of Isla Desecheo (also a Puerto Rican island) and 38 miles off the eastern coast of Dominican Republic. Mona Island has an area of 22 square miles.

Mona Island is mainly flat, a raised plateau completely framed by cliffs that drop 130 feet into the sea. A dramatic sight as you sail towards it. The land is composed of dolomite. The climate is very arid and hot.

Isla Mona, Puerto Rico / Mona Island

Isla de Mona is a barrio (ward) of the municipality of Mayaguez along with Isla Monito.