Osprey Reef Osprey Reef Osprey Reef is a submerged atoll in the Coral Sea, northeast of Queensland, Australia. It is part of the Northwestern Group of the Coral Sea Islands. Osprey Reef is roughly oval in shape, measuring , and covers around . It has a perimeter of . The central lagoon is only deep. The reef sits atop a seamount in deep water. It is an isolated location some from other reefs. The almost vertical reef walls, which rise from a depth of about , are home to a dwarf form of "Nautilus pompilius" that is isolated from other nautilus populations
Coral Sea Marine Park Coral Sea Marine Park The Coral Sea Marine Park (previously known as the Coral Sea Commonwealth Marine Reserve) is an Australian marine park located in the Coral Sea off the coast of Queensland. The marine park covers an area of and is assigned IUCN category IV. It is Australia's largest single marine park and is one of the world's largest protected areas. The Coral Sea Marine Park lies directly adjacent to and east of the Great Barrier Reef Marine Park. The Coral Sea Commonwealth Marine Reserve was proclaimed in December 2013, and renamed as a 'Marine Park' in October 2017.