There are really 2 lists for the 7 summits. To be on both lists Dan has decided to climb another mountain. He and Laura will leave for Indonesia in November.
The highest mountain in the Australian mainland is Mount Kosciuszko which Dan and I climbed several years ago. However, the highest mountain on the Australian tetonic plate which includes Australia and New Guinea is Puncak Jaya also know as the Carstensz Pyramid at 4,884 m (16,024 ft) above sea level. It is in the Indonesian province of Papua on the island of New Guinea which lies on the Australian continental shelf.