The Queen Maud Gulf Migratory Bird Sanctuary is Canada's largest federally owned protected area, encompassing some 61,765 km2 (23,848 sq mi) of the Arctic Circle coastline. 6,710 km2 (2,590 sq mi) are marine, and 55,055 km2 (21,257 sq mi) are terrestrial. Under the terms of the Ramsar Convention, it was designated as a wetland of international importance in 1982. It is the world's second-largest Ramsar Site. The majority of the park is lowlands and countless streams, ponds and shallow lakes. The land is mainly Arctic tundra and marshes.