Make it Brain

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Make it Brain team for Rare Cancers

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 cancers, in memory of and with those living with rare cancers 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! 


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

Thank you to our Sponsors

$106

Mona Fasel

$106

Alison Keetley

What a great cause to support Sig. Enjoy the climb.

$106

Rik, Anne & Ava

Go go go, Sig & Ed! 👏 🏔️ 💃🕺

$106

Joerg Klug

$100

Keiran Mccarthy-reece

$100

Duncan Purvis

Go for it Sigrid!!

$100

Nosey Parker Research

Go Sig!

$100

Meagan Correa

See you on the mountain!

$64

Sigrid Rijgersberg-von Stockausen

$54

Sarah Peaocck

Wonderful cause Sigrid and Good Luck! Xx

$53

Edwin Rijgersberg

$38

Stuart Horgan

Stuart and Tracie