Halmahera

Halmahera is the largest island in Indonesia’s North Maluku province, occupying a central position within the Maluku island chain. It is mountainous, volcanic and fringed by bays and coral reefs.

The island’s interior is dominated by rugged terrain and volcanic peaks such as Mount Gamkonora, while coastal zones contain mangroves, beaches and coral reefs that support fisheries and dive sites. Several towns and administrative centers line the coast, with Sofifi serving as the provincial capital on the western shore.

Halmahera’s geography includes multiple long peninsulas and deep inlets that create a complex coastline, and the island has a history tied to regional spice trade and colonial interactions though it is today more noted for its natural resources and biodiversity.

The island lies in eastern Indonesia in the Moluccas archipelago, north of Seram and Buru and east of Sulawesi, and is accessed by sea and limited air services to coastal towns.

• Shape and size: Halmahera is the largest island in the North Maluku province and has an irregular 'K'-shaped outline with several long peninsulas and deep bays.
• Environment: The island supports a mix of lowland rainforest, mountainous interior and rich coastal waters, making it important for terrestrial and marine biodiversity.

What to See #

• Mount Gamkonora: Mount Gamkonora, the island's highest volcano at about 1,560 m, forms a prominent inland high point and has a history of eruptions.
• Weda Bay and coral reefs: Weda Bay and nearby coastal reefs that are noted for coral diversity and are destinations for diving and marine research.
• Sofifi (provincial capital): The provincial capital area of Sofifi on the western coast, which serves as an administrative center and transport hub for the island.