Papua New Guinea, officially the Independent State of Papua New Guinea, is a country in Oceania that comprises the eastern half of the island of New Guinea and its offshore islands in Melanesia. Its capital, located along its southeastern coast, is Port Moresby. The country is the world's third largest island country, with an area of 462,840 km2 (178,700 sq mi).
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east.
The geography of Papua New Guinea describes the eastern half of the island of New Guinea, the islands of New Ireland, New Britain and Bougainville, and smaller nearby islands. Together these make up the nation of Papua New Guinea in tropical Oceania, located in the western edge of the Pacific Ocean.
New Britain is the largest island in the Bismarck Archipelago, part of the Islands Region of Papua New Guinea. It is separated from New Guinea by a northwest corner of the Solomon Sea and from New Ireland by St. George's Channel. The main towns of New Britain are Rabaul/Kokopo and Kimbe. The island is roughly the size of Taiwan. While the island was part of German New Guinea, it was named Neupommern . In common with most of the Bismarcks it was largely formed by volcanic processes, and has active volcanoes including Ulawun, Langila, the Garbuna Group, the Sulu Range, and the volcanoes Tavurvur and Vulcan of the Rabaul caldera. A major eruption of Tavurvur in 1994 destroyed the East New Britain provincial capital of Rabaul. Most of the town still lies under metres of ash, and the capital has been moved to nearby Kokopo.
Bougainville Island is the main island of the Autonomous Region of Bougainville, which is part of Papua New Guinea. It was previously the main landmass in the German Empire-associated North Solomons. Its land area is 9,300 km2 (3,600 sq mi). The population of the whole province, including nearby islets such as the Carterets, is approximately 300,000. The highest point is Mount Balbi, on the main island, at 2,715 m (8,907 ft). The much smaller Buka Island, c. 500 km2 (190 sq mi), lies to the north, across the 400–500 m (1,300–1,600 ft) wide Buka Strait. Even though the strait is narrow, there is no bridge across it, but there is a regular ferry service between the key settlements on either side. The main airport in the north is in the town of Buka.
The Bismarck Archipelago is a group of islands off the northeastern coast of New Guinea in the western Pacific Ocean and is part of the Islands Region of Papua New Guinea. Its area is about 50,000 square km.
Manus Island is part of Manus Province in northern Papua New Guinea and is the largest of the Admiralty Islands. It is the fifth-largest island in Papua New Guinea, with an area of 2,100 km2 (810 sq mi), measuring around 100 km × 30 km. Manus Island is covered in rugged jungles which can be broadly described as lowland tropical rain forest. The highest point on Manus Island is Mt. Dremsel, 718 metres (2,356 ft) above sea level at the centre of the south coast. Manus Island is volcanic in origin and probably broke through the ocean's surface in the late Miocene, 8 to 10 million years ago. The substrate of the island is either directly volcanic or from uplifted coral limestone.
The Fly River is the third longest river in the island of New Guinea, after the Sepik River and Mamberamo River, with a total length of 1,060 km (660 mi). It is the largest by volume of discharge in Oceania, the largest in the world without a single dam in its catchment, and overall the 20th-largest primary river in the world by discharge volume. It is located in the southwest of Papua New Guinea and in the Papua Province of Indonesia. It rises in the Victor Emanuel Range arm of the Star Mountains, and crosses the south-western lowlands before flowing into the Gulf of Papua in a large delta. The Fly-Strickland River system has a total length of 1,220 km (760 mi), making it the longest river system of an island in the world. The 824 km (512 mi) Strickland River is the longest and largest tributary of Fly River, making it the farthest distance source of the Fly River.
D'Entrecasteaux Islands are situated near the eastern tip of New Guinea in the Solomon Sea in Milne Bay Province of Papua New Guinea. The group spans a distance of 160 km (99 mi), has a total land area of approximately 3,100 km2 (1,197 sq mi) and is separated from the Papua New Guinea mainland by the 30 km (19 mi) wide Ward Hunt Strait in the north and the 18 km (11 mi) wide Goschen Strait in the south. D'Entrecasteaux Islands show signs of volcanism.
Normanby Island is a volcanic 1,000-square-kilometre (390 sq mi), L-shaped and mountainous island, the southernmost island in the D'Entrecasteaux Islands group. It is part of Milne Bay Province, Papua New Guinea. The island has an irregular and elongated shape measuring 73km in length (northwest-southeast).
Misima is a volcanic island in the northwest of Louisiade Archipelago within Milne Bay Province of Papua New Guinea.
The Green Islands is a small archipelago of islands in the Solomon Sea, within the Autonomous Region of Bougainville, in northeastern Papua New Guinea.
Long Island is a volcanic island in Papua New Guinea. It is located north of the island of New Guinea, separated from it by the Vitiaz Strait.
New Ireland, or Latangai, is a large island in Papua New Guinea, approximately 7,404 km2 (2,859 sq mi) in area with c. 120,000 people. It is named after the island of Ireland. It is the largest island of New Ireland Province, lying northeast of the island of New Britain. Both islands are part of the Bismarck Archipelago, named after Otto von Bismarck, and they are separated by Saint George's Channel.
Daru Island is an island in the Western Province of Papua New Guinea. It is one of the Torres Strait Islands. The eponymous town on the island is the capital of the province, and houses the vast majority of the island's population of 20,524 (2009). Daru Island is elliptical in shape, with dimensions of 5.0 by 3.7 kilometers, an area of 14.7 km², and an elevation of up to 27 m. The island is separated from the mainland in the north, specifically the mouth of Oriomo River, by the 3.5 km wide Daru Roads. The shortest distance to the larger Bristow Island in the south is 1.3 km.
Pana Tinani is an island in the Louisiade Archipelago in Milne Bay Province, Papua New Guinea.
New Guinea is the world's second-largest island, with an area of 785,753 km2 (303,381 sq mi). Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the 150-kilometre wide Torres Strait, though both landmasses lie on the same continental shelf. Numerous smaller islands are located to the west and east.
Tabar Island is an island of the Tabar Group of Papua New Guinea, located to the east of New Ireland. It is inhabited by the Tabar people.
Brumer Islands are an island group of Papua New Guinea.
Milne Bay 
