Learn about the geography, people, language, climate, health, hazards, townships, public holidays, time zone, currency, telecommunications and visas of Bougainville , an autonomous region of Papua New Guinea. The island that would later be called Bougainville was first sighted in 1768 by the French explorer Louis de Bougainville who gave the island its name. The German New Guinea Company as a part of their holdings that included the islands of New Guinea, New Britain, New Ireland and all of the Solomon Islands later annexed the island. By agreement of 1899 between Germany and Great Britain, Bougainville was separated from the other Solomon Islands and remained under German control while the ... Explore the hidden paradise of Bougainville Island with our guide. Discover its rich culture, stunning landscapes, and unique experiences. Discover the idyllic island province of Bougainville , with its crystal clear waters, lush jungle, and rich culture. Learn about its history, attractions, and how to get there from Port Moresby.