Colin Maher

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I am fundraising for..

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, I 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.

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Thank you to my Sponsors


Colin Maher

I have faith in you.


Roderick Smith

All the best mate!


Krish Peruvemba

A worthy cause! Good Luck!


Eric Chung

Go Colin! Great cause! Thank you for representing Prospection. Smash the challenge.


Filippo A.

Great initiative Colin!


Sue Pinhey

Go Colin (You got me with the dog!)


Dean Palmer


John Cairns


George Gertos

Great cause. Wishing you the very best Colin.


Jarad Evans

Go well my friend, thank you for taking on this challenge. A charitable cause very close to my heart.



Hit that target wingman.


Tom Lynch


Rachel Watson


Charlie Gurdon

Best of luck, Colin - what a challenge, and for such a great cause. Best, Charlie


Kylie Scoullar

Go Colin! And great photo with the dog :)


Sarah Davids

Congrats Colin! Well achieved after extensive training program



Go Colin!


Axel Korth

Hi Colin, I did not know but wish you well and your initiative is truly inspiring. Keep the positive spirit!! Kind regards Axel


Graham Van Damme


Jane Atkins

Good luck Colin 🍀


Jeffrey Froud