The ecoregion includes several island groups lying east of the eastern peninsula of the island of New Guinea, within Milne Bay Province, including the d'Entrecasteaux Islands and Trobriand Islands archipelagoes, and Woodlark Island.
The ecoregion comprises a collection of islands positioned to the east of the easternmost part of the island of New Guinea, within Milne Bay Province. It includes the d'Entrecasteaux Islands and Trobriand Islands archipelagos, along with Woodlark Island.