Papau New Guinea is a mountainous island of volcanic origin. It is surrounded by several archipelagos. To the north, New Britain, New Ireland and Manus Island make up the Bismarck Archipelago. The D'Entrecasteaux and Tobriand Islands lay to the east. Nicknamed 'the islands of paradise and love' by anthropologist Malinowski, they are especially interesting for their traditional culture which the locals faithfully keep up. Papau New Guinea is a land of volcanoes. The Bismarck Sea has some one hundred alone. However, the most beautiful volcanic and diving sites are found along the coast near Madang. Indeed, this country owes it fabulous geographic diversity to its volcanoes. Mangroves, coral reefs and lagoons line the coasts of Papau New Guinea.