On-Mountain
Rare Cancers Australia Kosi Challenge
Friday 13 - Saturday 14 Mar, 2026
- WhereThredbo Village to Mt Kosciuszko
- Cost$45 under 15 / $95 Adults
Join us in Rare Cancers Australia’s biggest annual fundraiser, and take on the hike to the top of Mt Kosciuszko. Each year, participants from all over the country come together in Thredbo to hike Australia’s highest peak and raise vital funds for Australians living with rare and less common cancers.
Rare Cancers Australia (RCA) work tirelessly to support 52,000 people diagnosed with rare and less common cancers each year. With limited patient support available, RCA is determined to ensure no one facing this journey is ever forgotten or left behind.
In 2025, we had more than 1000 climbers join us across two incredible days and now this is your chance to experience some of Australia’s most breathtaking alpine scenery while making a real difference. Lace up your boots, take in the crisp mountain air and hike for a cause that matters.
Whether you ski, snowboard, hike, mountain bike or are visiting for the first time, our app is your companion to Australia’s Premier Adventure Destination.
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Thredbo sits on the traditional land of the Monero – Ngarigo people who have looked after this land, water and community for over 60,000 years. We thank them for all they have done and continue to do to look after their country, a special place which we all love and respect.
