Papua New Guinea Geography

Papua New Guinea stretches from mainland South-East Asia. The country occupies the eastern half of the second-largest non-continental island in the world, as well as the smaller islands of the Bismarck Archipelago, the D’Entrecasteaux Island group, and three islands of the Louisiade Archipelago. The main island shares a land border with Irian Jaya, a province of Indonesia. As for the terrain, the mainland and larger islands are mountainous and rugged, divided by large fertile upland valleys. So, two-thirds of the world’s species of orchids come from Papua New Guinea.