Diving In Costa Rica Costa Rica is a small country in Central America that has greater biodiversity than Europe or North America. A tropical paradise, rich in forests and wildlife , Costa Rica boasts over 800 miles of coastline. Lately, a lot of conditions and Fantastic diving marine life have also contributed to a fascinating destination for diving Costa Rica is bordered by the Pacific Ocean to the west and the Caribbean Sea to the east. The Caribbean coast offers the best conditions for diving , while the Pacific coast offers more diving equipment. In the Pacific, with the exception of the Gulf of Papagayo and Bahia Drake, visibility underwater is considered poor. The Caribbean coast of Costa Rica has better visibility under water, but is still underdeveloped. So far, diving in Costa Rica is concentrated in the Gulf of Papagayo , and around the Osa Peninsula to CaƱo Island