Puncak Jaya, Papua province, Indonesia

Puncak Jaya, sometimes called Mount Carstensz or the Carstensz Pyramid, is a mountain in the Sudirman Range, the western central highlands of Papua province, Indonesia (within Puncak Jaya Regency). Other names include Nemangkawi in the Amungkal language, Ngga Pulu, Carstensz Toppen and Gunung Sukarno.
At 4,884 metres (16,024 ft) above sea level, Puncak Jaya is the highest mountain in Indonesia, the highest on the island of New Guinea (which comprises the Indonesian Papua provinces plus Papua New Guinea), the highest of Oceania (Australia), and the 5th highest mountain in political Southeast Asia. It is also the highest point between the Himalayas and the Andes, and the highest island peak in the world. Some sources claim Mount Wilhelm, 4,509 m (14,793 ft), as the highest mountain peak in Oceania, on account of Indonesia being part of Asia (Southeast Asia).

Jaya is high and wet enough to support some small glaciers, only 4 degrees from the equator. Surrounded by unexplored rainforest, the area is difficult to reach for the casual tourist. Puncak Jaya is one of the more demanding climbs in one version of the Seven Summits peak-bagging list.