Goodenough Island in the Solomon Sea, also known as Nidula Island, is the westernmost of the three large islands of the D'Entrecasteaux Islands in Milne Bay Province of Papua New Guinea. It lies to the east of mainland New Guinea and southwest of the Trobriand Islands. It is roughly circular in shape, measuring with an area of and a shoreline of . From a coastal belt varying in width from in width, the island rises sharply to the summit of Mount Vineuo, above sea level, making it one of the most precipitous islands in the world. The small outlier Wagifa Island lies to the south-east of the island, and is included within Goodenough's administration. Climate and vegetation Like much of New Guinea, the climate is tropical with high temperatures and humidity throughout the year. The northwest monsoon season lasts from December to March and brings sudden rain squalls. From May to October southeasterly winds are cooler and more gentle. Tropical cyclones are infrequent. Rainfall varies between 1,520 mm and 2,540 mm per annum. Serious droughts occur once or twice a decade. Rushing streams with waterfalls drain water from the central mountain. Rain forest cloaks the higher elevations with secondary forest, grassland and native gardens on the lower slopes and coastal plains. Soils are acidic. A rare edible citrus plant, Citrus wakonai (Citrus warburgiana; locally called "kakamadu", a name shared with other citrus species), grows on Goodenough Island. History The D'Entrecasteaux Islands have probably been inhabited for several thousand years, the people being related to mainland Papuans. The first sighting of the archipelago by a European was by the French mariner Joseph Antoine Bruni d'Entrecasteaux in 1792 but it remained unexplored by Europeans until 1874 when Captain John Moresby, commanding HMS Basilisk, landed on the westernmost island and gave it a European name after a British naval colleague, Commodore James Graham Goodenough. The impact of western culture after Moresby's visit and before World War II was limited to missionaries, ethnographers and traders seeking whales, pearls or gold. In 1888 William MacGregor visited the island in his role as administrator of the newly proclaimed British New Guinea. In 1891 the Methodist Church of Australia established a mission station on Dobu Island (between Ferguson and Normanby Islands) under the direction of William Bromilow. From there mission stations were established in strategic centres in the D'Entrecasteaux and Trobriand Islands and the Louisiade Archipelago. In