Puerto Rico is located in the Caribbean sea west of the U.S. Virgin Islands and to the east of the Dominican Republic. It consists of the main island of Puerto Rico and various smaller islands, including Vieques, Culebra, Mona, Desecheo, and Caja de Muertos. Of the latter five, only Culebra and Vieques are inhabited year-round. The main airport of the island is Luis Munoz Marin International Airport and the main seaport- Port of San Juan. Diving in Puerto Rico will be an amazing vacation! Experience the richness and splendor of the underwater life while scuba diving in Puerto Rico. Puerto Rico has plenty of coral reefs, caves and sea walls for divers of all experience levels. In the waters that surround the island schools of colored fish, including parrotfish, butterfly fish, moray eels, jacks, bluehead wrasse, octopus, barracudas, sergeant majors and seahorses can be found. The best diving is off the island's south, east, and western coasts. Although, diving straight off the beach in San Juan on the north coast, takes divers to the world of lava reefs, interspersed with caverns, tunnels and overhangs that provide hiding areas for schools of snapper, copper sweepers, flying gurnards and soft and hard corals. On the east coast, areas with lots of sites are positioned around Fajardo, Humacao Region and Palomino, Culebra and Vieques islands. The islands are great for night diving and have one of the most impressive bioluminescence in the world. Cayo Diablo is also a great site to visit, known among divers as a treasure box of corals and marine animals. The island of Culebra boasts over 50 dive sites, including cave dives, a natural tunnel, wall dives, a shipwreck dive (The Wit Power) and endless coral reefs (Cayo Lobito and Cayo Raton sites). Patti’s Reef and Angel Reef sites are excellent for beginners and both are accessible from Vieques. Other diving sites to visit include the southern coast, particularly around Parguera, most popular are Black Wall, Efra's Wall, Fallen Rock and Pozas. Black Wall is the island’s most famous diving destination. This formidable wall is some 22 miles long and drops down to a depth of over 1,500 ft. The wall was named for the glorious black coral gardens, schools of black durgeons and black gorgonians that can be found here. Some of the more popular reefs are located on the west coast, including Mona Island and Desecheo Island. Top dives on Desecheo include Candyland, Ladder Reef and the Caves, which have some nice swim-throughs. On Mona Island walls and massive caverns, drop-offs and various types of coral reefs are teeming with lots of pelagic marine life and oversized permanent residents, such as giant green moray eels, large lobster and some 270 species of reef fish.