How the country fits together
Four travel regions, many separate journeys
Papua New Guinea is commonly grouped for tourism into the Papua Region, Highlands Region, Momase Region and Islands Region. Those labels are useful because they reflect real differences in terrain, access and travel style. A journey that combines Port Moresby, Mount Hagen and East New Britain is not a simple overland circuit.
Roads are important within cities, provinces and some regional corridors, but the country's mountainous interior and island geography limit long-distance road connections. Domestic aviation therefore carries much of the interregional travel load, while boats are essential in many coastal, river and island areas. Trekking remains the only practical way into some remote places.