Bolaños Island is an important conservation seabird sanctuary for the nesting of brown pelicans and the very particular Magnificent Frigate bird. Other types of birds that also nest here are the American Oystercatcher, magpie jays, black vultures, and several species of bats.

The 25 hectares island has a white, sandy beach at the eastern tip of the island with mounds of seashells and clams. At low tide it’s possible to walk round the island and gives visitors a chance to glance at several species of crab that live and mate here, specially the large sized land crab.