Archipelago, across the entrance to Cenderawasih Bay of the Pacific Ocean, off the northern coast of Papua (Irian Jaya), Indonesia.
The islands cover an area of 1,231 sq mi (3,188 sq km). The chief islands, Biak, Supiori, and Numfoor, are among the most densely populated areas of Papua. Another island group of the same name is located off the northeastern coast of New Guinea island; it is part of Papua New Guinea.