Fergusson Island, D'Entrecasteaux Islands,
Milne Bay Province, Papua New Guinea
Summit elevation 400 m
Oiau is one of three volcanic centres in the Dawson Strait Group.
It is located on the SE end of Fergusson island, on a peninsula between
Kedidia Bay and Numanuma Bay.
The volcano consists of a composite cone with a summit crater.
There is a recent looking lava flow in the crater.