Bolaños Island National Wildlife Refuge

(Local Name: Refugio Nacional de Fauna Silvestre Isla Bolaños) Part of the Guanacaste Conservation Area (ACG), this 25ha/62ac island is a nesting ground for several species of seabirds. The island is in the Salinas Bay on the Nicaraguan-Costa Rican border. The ACG is recognized as a UNESCO World Heritage Site.

The rocky and mostly barren island features a nesting colony of hundreds of pelicans on the northern end of Bolaños Island, as well as hundreds of frigatebirds nesting on the southern cliffs. There are no facilities on the island, and the ACG headquarters must be contacted for a permit to land on the island. Many visitors observe the seabirds from a boat.