The Puncak Jaya (or Carstensz Pyramid), a 16,024 ft high mountain in the Indonesian section of New Guinea, holds multiple records. It is the highest point on the island and the world's highest island summit. Puncak Jaya is also the highest mountain in Indonesia, and according to some accounts, the tallest peak in Oceania (if the Indonesian part of New Guinea is regarded as part of Oceania). The peak is the tallest of Mount Jayawijaya's four summits, which are part of the Sudirman Range. The first ascent to the peak's summit was made in 1962.

Puncak Jaya is remarkable for having glaciers, as it is one of the world's few tropical or equatorial mountains. Climate change has caused the Carstensz and Northwall Firn glaciers to recede in recent years. Puncak Jaya is part of the Seven Summits climbing challenge. The Seven Summits challenge requires mountaineers to climb the highest mountain on each continent. Despite its modest elevation, Puncak Jaya is regarded as one of the Seven Summits' most technically demanding climbs.

Height: 16,024 feet

Location: the Indonesian part of the island of New Guinea

The Puncak Mandala may be found on the Indonesian island of Papua. It is part of the Jayawijaya (Orange) Range and has an elevation of 15,617 feet above sea level. Although the pinnacle of this mountain was once covered by an ice cap, the ice has vanished altogether since 2003. Climbers from a Dutch expedition made the first ascent to the summit of this mountain on September 9, 1959. It is New Guinea's second-highest peak.

The mountain peak of Pucak Mandala is still regarded as a challenge by modern mountaineers since many individuals have failed to complete their trips to the peak's summit. Even the lowlands and highlands areas deep below the top are densely forested and difficult to travel, providing a home for many mountain animals and bird species, and meadows may be found in other locations around the mountain peak as well. There are also local people that live in the lowland areas near the mountain's foot.

Height: 15,617 feet

Location: the Indonesian island of Papua

Puncak Trikora is a 15,584-foot-tall mountain in Indonesia's Papua region. It is located in the Sudirman Range. According to some accounts, it is the second-highest peak in New Guinea, however, the Puncak Mandala is higher. Puncak Trikora, like the other high mountains on the island, has lost its ice cover in recent decades. On February 21, 1913, the peak was first summited.

There are numerous fore-summits to conquer before reaching the real summit, and scrambling abilities and a strong constitution are essential; there is some exposure. The main top is not made of solid limestone but rather resembles a plateau with loose boulders. It takes roughly 3 hours to climb the Western ridge from the short chimney that leads to the summit ridge from the grassy Northern side. According to Christian Stangl's GPS readout, the distance is 1,6km as the crow flies on a difficulty rating of 3.

Height: 15,584 feet

Location: the Sudirman Range, New Guinea