7) Australasia: Puncak Jaya (Carstensz Pyramid), Indonesia (Western Papua), 4,884 m (16,024 ft) (04° 4′ 44″ S, 137° 9′ 30″ E)Carstensz Pyramid, also known as Puncak Jaya is one of the famous ‘Seven Summits’ situated on the Indonesian island of Papua New Guinea. This peak is the only of the Seven which is a rock climbing peak and it requires a trek in through remote jungle to reach the base camp. The peak is in west Papua (now named Papua province Indonesia) and was called Irian Jaya until 2005. It lies in New Guinea, which is the world”s second largest island.The first successful ascent of Carstensz Pyramid (also known as Puncak Jaya) was in 1962 by an Austrian team that included Heinrich Harrer. Harrier was also a member of the first ascenders of the Eiger’s North Face and famously wrote Seven Years in Tibet.Conditions are very diverse and often challenging, so be prepared to trek in the heat of the jungle, and climb in snow. The rock itself is good climbing rock but very sharp so bring a good pair of gloves. It is a very exciting and dramatic expedition, definitely one of the most difficult of the Seven Summits despite it being the lowest.