New Caledonia is made up of a main island, the Grande Terre , and several smaller islands, the Belep archipelago to the north of the Grande Terre, the Loyalty Islands to the east of the Grande Terre, the Île des Pins (Isle of Pines) to the south of the Grande Terre, the Chesterfield Islands and Bellona Reefs further to the west. A territorial dispute exists with regard to the uninhabited Matthew and Hunter Islands, which are claimed by both France (as part of New Caledonia) and Vanuatu.The Grande Terre is by far the largest of the islands, and the only mountainous island. It has an area of 16,372 square kilometres (6,321 sq mi), and is elongated northwest-southeast, 350 kilometres (217 mi) in length and 50 to 70 kilometres (31–44 mi) wide. A mountain range runs the length of the island, with five peaks over 1,500 meters (4,900 ft). The highest point is Mont Panié at 1,628 meters (5,341 ft) elevation. The total area of New Caledonia is 19,060 km (7,360 sq mi), 18,575 km (7,172 sq mi) of those being land. New Caledonia is one of the northernmost parts of a (93%) submerged continent called Zealandia. It sank after rifting away from Australia 60–85 million years ago (mya) and from Antarctica between 130 and 85 mya. New Caledonia itself is separated from Australia since 65 mya, and subsequently drifted in a north-easterly direction, reaching its present position about 50 mya.10 -