Rabaul is a township in East New Britain province, Papua New Guinea. The town was the provincial capital and most important settlement in the province until it was destroyed in 1994 by falling ash of a volcanic eruption. After the eruption the capital was moved to Kokopo, about 20 kilometres away. Rabaul is continually threatened by volcanic activity due to being built on the edge of Rabaul caldera, a flooded caldera of a large volcano.
As a tourist destination, Rabaul was popular for scuba diving and for snorkelling sites and a spectacular harbour. Before the 1994 eruption, Rabaul was a popular commercial and recreational boating destination in Papua New Guinea. There are still several diving operators based there, but tourism has yet to recover to its pre-eruption levels.