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About Osa Peninsula

Located on the Pacific coast of south-western Costa Rica, the Osa Peninsula offers good diving conditions and different activities for divers of all experience levels. Divers can practice snorkeling and scuba diving here as well as cave diving and liveaboard. There are a lot of rocky pinnacles, canyons, walls and caves to explore while diving. Caño Island (Isla del Caño) is the most popular dive destination in the area. A protected biological reserve west of Drake Bay, it offers some of the most exciting diving, with its wide variety of marine life, including schools of rays and whitetip reef sharks, as well as large schools of fish swimming both around divers and overhead. Worth visiting dive sites include Devil's Pinnacle, Sunken Ship, Shark's Cave, The Arches (Los Arcos), and Paradise.

When to go to Osa Peninsula

Diving off the Osa Peninsula (Península de Osa) is available year-round. Water temperature averages throughout the year are 24-27C/75-80F. Air temperature throughout the year varies from 77F/25C to 93F/34C. Water visibility is good and can range from 13-27m/45-90ft; variation is due to fluctuating levels of plankton in the water. Humpback whales can be seen in this area from September to January. What to see The marine life is absolutely astounding in these waters and the reef life will not disappoint snorkelers and divers, with its stunning array of tropical fish, including schools of snappers and grunts, schools of rays and whitetip reef sharks, humpback whales, dolphins, false killer whales, bull sharks, turtles, sand eels, moray eels and more.