Mona and Monito Island are located at the Mona Passage approximately 40 miles from the west coast of Puerto Rico. Departure point is from Boqueron Cabo Rojo. Mona and Monito Island are of limestone origin which emerged from the sea floor due to a sismic event 15 million year ago. Mona Island's coast is mostly composed of vertical cliff walls with sparse white sand beaches on the southern coast. Too of these beaches are accessible by boat, Sardinera and Pajaros. Monito is located 4 miles north of Mona and has no beaches.

Diving around both islands is made up of variety of enviroments including coral reef, drop off walls, verticall cliff and huge boulders. Underwater visibility is usually around 100 feet. Water currents may be 2 knots depending on the tides. All dives are drift dives guided by a local expert. Abundant wildlife including seabirds, marine turtles, reef fish and pelagic species are common.

Other link to Mona:
http://en.wikipedia.org/wiki/Mona,_Puerto_Rico