Diving Silky Shark Silkies Cocos Island Costa Rica

Located in the Eastern Tropical Pacific, 300 miles southwest of Cabo Blanco, Costa Rica, lies the famous Cocos Island Marine Park. A rugged and incredibly beautiful island, this World Heritage Site is the crown jewel of Costa Rica´s many National Parks. Cocos Island has an irregular coastline, which makes estimation of land area more a matter of opinion than a surveyor’s science, but it is roughly five miles by two miles (8 x 3 kilometers).

The island was formed during a volcanic upheaval about two-and-a-half million years ago and is composed of basaltic rock, labacorite and andecite lava flows. Its landmass is punctuated by four mountain peaks, the highest of which is Cerro Yglesisas, at 2,080 feet or 634 meters.

Among Cocos Island’s many attributes is a startling degree of biodiversity. This Island’s world-renowned waters explode with life; including innumerable white tip reef sharks, schooling hammerhead sharks, dolphins, mantas and marbled rays, giant moray eels, sailfish, and of course the occasional whale shark. Other common encounters are large schools of jacks and tuna, silky sharks, silver tip sharks, marlin, Creole fish, green turtles and octopus.