Location & Size: Pacific Ocean, 532 Km S.W. of Costa Rica. The national park has: 2, 400 Ha. (Terrestrial) and 97,235 Ha. (Maritime).

Characteristics: Island of volcanic origin located off the western coast of Costa Rica and famous among treasure hunters as it is believed that famous pirate treasures have been buried on this island. Due to the landscape of the island, there are many spectacular waterfalls that plunge into the sea and a large number of underwater caves are found.

Fauna: 85 species of birds (3 endemic): the endemic species are Coco Island finch, Coco Island flycatcher and Coco Island cuckoo. Sea birds are abundant.

Mammals: Felines, white-tailed deer, pigs and goats.

Reptiles: 2 endemic lizards can be found within the Park

Insects: 351 species (65 endemic). There are also 3 species of spiders.

Marine fauna: 57 crustaceans, 118 sea mollusks and over 200 fish species, among them: hammerhead sharks, white-tipped sharks, parrot fish, tuna and manta rays.

Flora: Evergreen forest and Cloud forest (Iglesias Peak) with 235 plant species (70 endemic) identified, such as: cupey, huriki, Euterpe macrospadix palm (endemic), ferns, bromeliads, selaginellas, etc.

Marine plant life: 18 coral species.

Importance of the park: Protect and study the plant and animal life which is unique as it has evolved differently due to the distance that separates the island from the mainland, thus creating endemic species only found on this island and nowhere else.

Visitor facilities: Guard post and trails. Camping not allowed.