Location & Size: Puntarenas Province, on the Pacific Coast, 25 km S.W. of Orotina. The biological reserve has 4,700 Ha.

Characteristics: As a transition zone between the dry region to the north and the humid region to the south, the reserve offer an incredible variety of evergreen species. Archeological remains are found in the form of ancient tomb sites.

Fauna: Mammals: four-eyed opossum, two-toed sloth, agouti, kinkajou, tayra, margay cat, collared peccary and white-tailed deer.

Bird species: Roseate spoonbills, anhingas, jacanas, pied-bellied grebes, Mexican tiger-bitterns, American egret, great tinamou, turkey vulture and the scarlet macaw.

Reptiles: Crocodiles (up to 3 meters) easily seen in the Grande de Tárcoles River.

Flora: Marshlands, lagoon; primary, secondary and gallery forests. Species include: vines, epiphytes, espavel, silk cotton, wild fig, nargusta, quamwood, guayabo de monte, mapola, hura, viscoyol palm. The lagoon is covered with water hyacinths and other aquatic plants.

Importance of the reserve: Protect the bio-diversity present in this transition zone between the dry and the humid zones as well as many threatened and endangered species such as the american crocodiles and the scarlet macaw.

Visitor facilities: Headquarters building. Camping allowed but not recommended during the rainy season. Bathrooms and showers available. Trails available.