We're fundraising for Damien Farrell, my cousin who bravely navigated his horrific sarcoma diagnosis and the Rare Cancers Australia navigation team.
I am climbing for rare.
The Kosi Challenge is the single signature fundraiserfor 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.
Thank you to our Sponsors
$264
Simone Carson
$264
Peter Sertori
Go Cath and Cass !!
$258
Lisa Mackenzie
With love 💕 Lisa and Graham
$250
Michael Farrell
Go Cathinamus! All for Damo! 🙏🏻
$250
Michael Farrell
Go Cassaroo! All for my amazing cuz Damo, and my beautiful Auntie Trish! 💪🏻🙏🏻
$250
Greg Farrell
$250
Vincent Balcombe
$211
Monique & Paul
❤️
$211
Sue
Go Cassie go 🏃♀️xxx
$200
Tony Bourke
Great effort Cassi. Well done.
$158
Liz Vale
Graet cause and good luck with the Kosi challenge!
$155
Cassandra Farrell
$106
Boorneo
Good luck! A truly great cause.
$106
Craig & Rachael
<3
$106
Robin Schmitt
What a fabulous tribute to your mum & Damo. You & Cathy on the top, in the clouds, closer to the stars. Enjoy the challenge.
$100
Samantha Gillett
"Your dedication to Rare Cancer Australia is amazing Cathy! In honor of Damien for your 2026 walk , I wish you and Cass a successful, fun and memorable adventure together.
$64
Cathy Sertori
$54
Lis Collins
$54
Jen Muldoon
Go Cath. You are Amazing 💪💪💪
$54
Cate Mitchell
Good luck!
$54
Bernie Whitney
$54
S Maron
$54
Michelle Mcneil
All the best Cath, a wonderful tribute to Damo. xxx
$54
Bron Murphy
Love to you and family.❤️
$54
Simone
$54
Carmella Therese Whitney
Good onya Cass
$54
Jane Parker
Great walk for a great cause
$54
Keryn Mar
Good luck to both you and Cass, obviously a great cause and this year particularly special in memory of Damo.
$54
Keryn Anne
Good luck Cass and I know Trish and Dame will be with you and Cathy all the way.
$54
Samantha Halpern
Great work Cath! So sorry to hear about your cousin. He'll be with you every step of your kosci climb.
$54
Michele Spencer
What a lovely thing to do in memory of your cousin Cathy, well done and good luck xx
$54
Catherine
$54
Lyndall
Thanks Cath
$50
Renèe Shipman
Proud of you Cathy - more than happy to support this amazing initiative and cause xx
$50
Dean Leigh
$40
Jess Sertori
$38
Charlie Coady-jiear
❤️
$38
Jenny Brooks
$38
Mary V!
Incredible! Such an amazing tribute 🥰
$35
Julie Dewis
Say Hi to Cassandra for me....what a great thing to be doing for Damo xxxxx
$28
Hugh Coady-jiear
Love ya faz.
$28
Karen Livingstone Am
$23
Julie Burton
$23
Briana Mcneil
Wishing your team all the best such a great cause and wonderful way to honour your cousin.



Thing of Michelle and Damien. Cogratulations Cath on making a difference with your love , friendship and support of those that are faced with cancer.