Dive.
The rabaul area offers some fantastic diving opportunities. apart from incredible coral and fish there are numerous sunken japanese battleships to explore. dive companies include:
Climb.
In addition to the two active volcanos, tavurvur and vulcan, there are four other volcanic hills surrounding simpson harbour. mt. mother or kabiu is the highest. this is 700 meters and can be climbed early in the morning from matalau village. mt. tavanabatir provides a home to the rabaul volcanic observatory and offers a beautiful panoramic view of rabaul town, as shown in the photo.