9. Climb Mt. Kosciuszko in Summer or Snow
Standing at 7,309 ft (2228 m), Mount Kosciuszko is Australia’s highest mountain and it makes for a refreshing-but-serious climb from the sweltering heat of the Australian summer. In the old days, prior to 1974, slackers could drive most of the way to the top. Today, around 30,000 people trek to the summit each year. Guided tours are available from Thredbo.