Jayapura is the capital of Papua province, a city of around 250,000 people spread along the shores of Yos Sudarso Bay — still known to many by its Dutch colonial name, Humboldt Bay. The city has accumulated names like rings on a tree: Hollandia under the Dutch from 1910, then Kotabaru and Sukarnopura after Indonesian integration, before finally becoming Jayapura in 1969.
Most travelers pass through here rather than linger. Jayapura is the main gateway into the Papuan interior, and anyone heading to the Baliem Valley will need to overnight here before catching an onward flight. The city itself is functional rather than beautiful, but it has genuine things worth seeing.
The Museum Loka Budaya on the edge of town holds a superb collection of Asmat wood carvings and Papuan ritual objects — one of the better ethnographic museums in eastern Indonesia and easily worth a morning. Scattered around the bay are well-preserved relics of World War II: Jayapura served as General MacArthur's headquarters for the Pacific campaign, and rusting hulks and bunkers still dot the coastline at Hamadi Beach, with his hilltop command post preserved as Tugu MacArthur. Lake Sentani, near the international airport about 30 km to the west, is a wide freshwater lake ringed by hills; the annual Sentani Festival in June brings together traditional music, dance, and bark-cloth painting from across Papua.