Tern Island, Papahānaumokuākea Marine National Monument

Tern Island is a tiny coral island located in the French Frigate Shoals in the Northwestern Hawaiian Islands, at 23.870°N 166.284°W / 23.870; -166.284, approximately 490 miles west north west of Oahu. It has a land area of 105,276 m². The island provides a breeding habitat to 18 species of seabirds, threatened Hawaiian green sea turtles, and endangered Hawaiian monk seals. It is maintained as a field station in the Hawaiian Islands National Wildlife Refuge by the United States Fish and Wildlife Service. ()