Andrew Thirlwell

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I am climbing for rare

The Kosi Challenge is the single signature fundraiser for Rare Cancers Australia (RCA), with the sole purpose of raising awareness and much needed funds for people across Australia impacted by rare and less common cancers.

In March 2026, I'll be climbing with hundreds of others, in support of rare, in memory of and with those living with rare themself – together we are a community and Kosi unites us all!

All funds raised through the Kosi Challenge goes directly towards funding the individualised, 360 degree person centred support that RCA’s team of specialist cancer navigators provide for patients, carers and their families.

Thank you so much for your support – now can I get a ‘Kosi, Kosi, Kosi – Oi,Oi,Oi!’

P.S RCA is a Federal Government-classified Health Promotion Charity. All donations are fully tax deductible.

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My achievements

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My Updates

Why I’m climbing

In the coming weeks, I’ll be climbing Mt Kosciuszko—not because I’m chasing a personal best time or ticking off a bucket‑list hike, but because this climb is about something far bigger than me.

I’m doing it in memory of my mum, who we lost to a rare cancer.

Like so many families facing rare cancers, ours entered a world of uncertainty almost overnight. Limited information. Fewer treatment options. A sense that the system simply wasn’t built for what we were dealing with. Rare cancers don’t have the same visibility, funding, or research focus as more common diagnoses, and that gap is felt most acutely by patients and their loved ones when time matters most.

Please consider a tax deductible donation to support those who will be diagnosed with a rare cancer in 2026