Gather at the Baia Sports Fishing Lodge, located on the northern coast of New Britain. While snorkeling and boat trips are available through the lodge, the main activity, as the name suggests, centers mainly around fishing; three types of bass swim within the river. More adventurous anglers may wish to try offshore fishing in the nearby seas.

Hike the rugged, isolated Baining Mountains, home to a series of villages inhabited by tribes indigenous to Papua New Guinea. For the complete experience, stay the night accompanied by your guide in a villager’s home.

Fly by helicopter over Tavurvur and Vulcan, two looming picturesque volcanoes that erupted spectacularly in 1994. While today they are quiet, the 1994 eruption caused the evacuation of Rabaul, then the provincial capital, and spewed smoke and ash 60,000 feet (18,288 meters) into the air. Admire the forbidding splendor of the two volcanoes from the air, especially the giant, steaming caldera within Tavurvur.

Visit the extensive, maze-like tunnels in and around Rabaul’s harbor, which measure 435 miles (700 kilometers) in total length. Dug by the Japanese to protect themselves from aerial bombardment, these tunnels include barracks and sleeping quarters, hospitals, and even hiding places for vehicles and barges.

Despite being an active volcano, Mount Garbuna is an excellent hike. Because of its periodic eruptions, the area around the volcano is lush and verdant – due to the incredibly fertile volcanic ash ejected from Garbuna during each eruption. After you reach the top, gaze upon the surrounding forests and lowlands; on a clear day, hikers can see all the way to the coast.

Make your way to Kimbe, a rapidly expanding harbor city overlooking the idyllic waves of the South Pacific. With over 900 species of fish and 400 species of coral, all situated in famously clear waters, Kimbe is an ideal location for intermediate and advanced divers.

During World War II, Rabaul, then the capital of New Britain province, served as a naval base and was the site of many battles. As a result, the nearby waters are littered with the hulks of sunken ships and shattered aircraft. Of particular interest is a Mitsubishi Zero fighter plane, which lies in 56 feet (17 meters) of water, nestled amidst rocks on the shallow sea floor, and overgrown with corals, barnacles, and other marine life.