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The Kosi Challenge is an annual event hosted by Rare Cancers Australia (RCA) to raise awareness and much needed funds for Australians diagnosed with a rare, less common or complex cancer each year.

In March 2024, we will be climbing 2,228 metres above sea level to reach Australia’s highest point to help RCA.

One hundred per cent of funds raised through the Kosi Challenge goes towards the important work of RCA's Patient Support Team.

From helping patients to access specialists and treatments, through to delivering support groups, connecting people with services and providing financial assistance particularly in times of crisis, Patient Support is at the heart of what RCA does.

RCA is a Federal Government-classified Health Promotion Charity. All donations over AU $2 are fully tax deductible.

Thank you so much for your support.

Thank you to our Sponsors


Canberra Coffee Club

Good luck Sarah with your walk (and thanks Julie B for the suggestion of a great cause).


Richard Glasson


James Eldridge

Hope is a nice overcast, cool walk Sarah.


Helen, Alexander And Nicholas

Good luck Ali! Hope you have fair weather and spring-like legs



Sarah you are someone who rises to a challenge …an inspiration


Andrew Cole

Go you girl , with love from Katy and Andy


Dian Hall


Sally Simpson


Winston And Ruth Bailey


Eva Palmer

Good luck Sarah


Tracey Learmont

Well done Sar xx


Vicki Carlyon

Enjoy the walk!


Ella & Andrew Whateley Macintyre

Andrew & I are delighted to support you. Good luck!


Sheila Mcgrath

Good luck Sarah! Have a great time walking xxx


Kate & Ian

There’s always gonna be another mountain… it’s the climb! Good luck!


Lorraine Learmont


Mark Bailey




Sarah Ormonde


Valhildur Anderson

Big achievement my friend. You are just amazing 💞 We will pop by someday soon xxx


Marni Champion

Beautiful Sistahood 🙏 Enjoy every step


Richard Glasson


Sue Hall


Fred Doolan

Make sure you stick your hand in the icy clear water and I expect a group photo at the top for this donation! 📸


George And Missy


Nisha Boyce

You go girl!



Wishing you the best for such a great cause. Enjoy those training sessions xx