The Dart Reefs is a collective of reefs in the central area of the Ward Hunt Strait. In nautical terminology a reef is a rock, sandbar, or other feature lying beneath the surface of the water (six fathoms or less at low water The Ward Hunt Strait is a 30km wide stretch of water separating Papua New Guinea from Goodenough Island in the D'Entrecasteaux Islands. The reefs are ribbon-like structured patch reefs.
They are located approx. 15 km from Papua New Guinea and the same distance from the island of Goodenough in the D'Entrecasteaux Islands. Papua New Guinea (or ˈpæpjuːə in Tok Pisin: Papua Niugini) officially the Independent State of Papua New Guinea, is a country in Oceania Goodenough Island is in the Milne Bay Province of Papua New Guinea. D'Entrecasteaux Islands are situated near the eastern tip of New Guinea in the Solomon Sea in Milne Bay Province of Papua New Guinea.