Located 550 km off the Pacific coast of Costa Rica, this is the only island in the tropical eastern Pacific with a tropical rainforest. The underwater world of the national park has become famous as one of the best places in the world to view large pelagic species such as sharks, rays, tuna and dolphins.
Numerous mysterious stone spheres, some more than six feet in diameter, have been discovered by archaeologists. The exact origin or purpose of these objects is unknown. It is believed that they were made anywhere from thousands to a few hundred years ago by the Diquis culture. There are four archaeological sites in the Diquis Delta on the Osa Peninsula. Many of the spheres have been relocated.
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Last updated: January 30, 2024