The offshore Sistema de Humedales de la Isla de Utila (16,226 hectares, 16o06’00”N 085o56’14”W) comprises the Bahía Islands Marine Park, which includes two Marine Special Protection Zones and one Wildlife Refuge. The importance of the site, which includes the Isla de Utila and surrounding waters, is based on its diverse and interdependent ecosystems, which are part of the Mesoamerican Barrier Reef System and include coral reefs, marine grasses, mangroves, swamps, coastal lakes, rocky shores, hypersaline shallow waters, and floodplains, as well as above and below ground karstic systems.