Kosi Challenge : Register

Choose your Challenge

If you have an account with us already please login below.

Email Address *

Password *

First Name *

Last Name *

Email Address *

Password*

Mobile *

How many years have you taken part in the Kosi Challenge? *

Are you climbing Kosi in honour of someone? *

I agree to the above Terms & Conditions *

The Kosi Challenge is Rare Cancers Australia’s (RCA) major fundraising event. 2025 marks the 13th year of the Rare Cancers Australia, Kosi Challenge.

Your donation will change lives. It will help patients of today. All donations over $2.00 are tax-deductible.

If you have any questions about the Kosi Challenge or RCA, please contact us.