Waigeo is an island in the Southwest Papua province of eastern Indonesia. The island is also known as Amberi or Waigiu. It is the largest of the four main islands in the Raja Ampat Islands archipelago, between Halmahera and about 65 kilometres (40 miles) to the northwest coast of New Guinea. The Dampier Strait (a.k.a. Augusta's Strait) separates it from Batanta, and the Bougainville Strait from the Kawe Islands to its northwest. The "inner sea" that nearly cleaves the island in two is Mayalibit Bay, also known as the Majoli Gulf.

The area of the island is 3,155 square kilometres (1,218 square miles); the highest elevations are 958-metre-high (3,143-foot) Buffalo Horn (Gunung Nok) and 939-metre-high (3,081-foot) Serodjil. From west to east, the island measures approximately 110 km (68 mi), north–south about 50 kilometres (31 miles).

The town of Waisai in the south of the island is the capital of the Raja Ampat Regency.

History

Jorge de Menezes, a Portuguese explorer, landed on Waigeo Island in 1526–27.

Islam first arrived in the Raja Ampat archipelago in the 15th century due to political and economic contacts with the Bacan Sultanate. During the 16th and 17th centuries, the Sultanate of Tidore had close economic ties with the island. During this period, Islam became firmly established, and local chiefs began adopting Islam.

Alfred Russel Wallace spent some time on the island and studied the flora and fauna during the late 1850s while on his scientific exploration trip.

Since 1997, the island has been the site of a substantial pearl farming operation owned by the Australian company Atlas Pacific.

Languages

Languages spoken on Waigeo include Papuan Malay, Biak, Ma'ya, and Ambel. Their distributions within the island are given below.

• Ambel is spoken in central Waigeo.
• Ma'ya is spoken in northwest Waigeo.
• Biak is spoken in the southwest and eastern parts of Waigeo.

Fauna and flora

• Waigeo brushturkey (Aepypodius bruijnii)
• Waigeou cuscus (Spilocuscus papuensis)
• Waigeo rainbowfish (Melanotaenia catherinae)
• Waigeo seaperch (Psammoperca waigiensis)
• Wilson's bird-of-paradise (Diphyllodes respublica)
• Golden-spotted tree monitor (Varanus boehmei)
• Achaea simplex
• Hypochlorosis ancharia
• Hypolycaena phorbas
• Karstarma waigeo
• Nepenthes danseri

Protected Areas

• Waigeo Barat Timur Nature Reserve protects much of the island's interior.
• Raja Ampat Marine Park covers Mayalibit Bay in central Waigeo and parts of the southern and southwestern shores.