Located on East New Britain Province, Rabaul lies on the rim of a volcanic caldera and has been likened to a lunar landscape. Rabaul was the scene of many fierce WW2 skirmishes and war wrecks litter the land and surrounding reef system. Following the volcanic eruptions of 1994, many wrecks in Rabaul Harbor were covered under tons of ash. This is now clearing in places and diving on some wrecks has resumed. Other wrecks outside the harbor are accessible and the reefs and surrounding islands have been untouched and offer fantastic diving.