The Osa Wildlife Sanctuary was established by in 1996.
Originally, the sanctuary was focused only on birds. Then, after Poppy, the spider monkey arrived on October 29, 2003 - the flood gates opened. The sanctuary is now home to a wide variety of orphaned and injured animals (about 70 animals in residence).
The sanctuary is situated on the Golfo Dulce coast at Cana Blanca. The property is contigous with Piedras Blancas National Park. With the protection of Piedras Blancas, much of the original sanctuary property's 700 acres became part of the Park.