Bomberai Peninsula (), otherwise known as the Bird's Beak Peninsula (), is located in the Western New Guinea region, opposite to and to the south of the Bird's Head Peninsula. To the west lies the Sebakor Bay and to the south Kamrau Bay. Sabuda island lies off the western tip of the peninsula, and is separated from the mainland by Berau and Bintuni straits. Geography The entire peninsula is covered by a dense tropical rainforest, and most of the peninsula consists of a marshy plain. Together with the eastern region of Bird's Head Peninsula and offshore islands, the Bomberai Peninsula forms the Indonesian province of West Papua (). The western part of the peninsula is part of Fakfak Regency, the north belongs to Teluk Bintuni Regency and the southeast to Kaimana Regency. It is a wide peninsula that opens to the Ceram Sea, forming a wide bay, Sebakor Bay, defined by two small peninsulas: to the northwest, the peninsula of Onin part of Fakfak Regency, includes Fakfak, the main town and port of the region. It is covered by a mountain range which reaches 1619 m (5312 ft) altitude. Due to the facilities offered by the town of Fakfak, this part of the Bomberai Peninsula is the most visited. to the southeast is the peninsula formed by the Kumafa Mountains, whose south coast is bathed by the Arafura Sea. It is a region little explored by europeans tourists and almost unknown to them. The region is historically called Sran and later Kowiai after the people and kingdom and the southern coast is part of Kaimana Regency and its main town and port Kaimana. To the north lie Berau Bay and Bintuni Bay, which separate the Bomberai Peninsula from the Bird's Head peninsula. Off the north coast are located the islands of Amutu Besar, Asap, Arguni and Ugar. Opposite is the island of Panjang in Tamaruni Bay. Further south are Samai Island and Sebakor Bay, which is protected from the offshore island of Karas by the Tamaruni Bay. Southeast beyond the Nautilus Strait () is the island of Adi. In the east, Kamrau Bay separates the peninsula from the rest of New Guinea. At its northernmost point lies the island of Freterenusu in the bay. Only narrow land bridges connect the Bomberai peninsula with the neighboring land masses. History There were trading relationships that formed based on birds of paradise feathers