We're fundraising for Merck Healthcare
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
$10.21k
Matched Team Donation
$528
Kerrilee Tomlinson
$264
Andrew Manton
Nice work for a great cause. And this is much easier than doing it myself.
$264
Embassy Creative
Go Team Merck!
$258
Anonymous
Go Ponticelli - legend!!
$250
Emma & Ben
Great cause Anna! All the best with the trek. Emma & Ben. X
$216
Edward Tomlinson
$211
Tim Richards
Brilliant!, 21k and half up hill is no joke ..
$200
Anonymous
$192
Big Fan
Well done Team Merck! Proud of you guys!
$136
Anonymous
Go Pont - you can do it!!!!
$106
Sam Heiligers
$106
Macri Electrical
Great job Aunty Jose very proud of you
$106
James Wilson
Smash it, Jess!
$106
Jodi Kukura
Good luck for the challenge Jo! All the best.
$106
Robyn Burt
Have a Happy Birthday on this fantastic climb xxx
$106
Rebecca Cushway
Good on you Joanne
$106
Gemma Smith
Go Sis & Tommy! We are so proud of you both and happy walking xxx
$106
Kate
❤️
$106
Vicki Cordony
Well done, Annie x
$106
Anonymous
friend of Tracy
$106
Sasita
You go girl !!!! Proud of you xx
$106
Jason Petrie
$106
Anonymous
Go Anna!! ❤️❤️❤️
$106
Resolve Heidelberg
$106
Anonymous
$106
Wayne Chivers
$106
Peter
$106
Hannora Jurkovic
$106
Anonymous
Ponti - you’re amazing! Go You!!!!
$106
Michael Mcclory
Good work on this. Happy climbing.
$104
Elia
Go girl!!!
$104
Deb & John Watson
$104
Cass Theodorou
Good on you Jo for doing your part to support research & patients with rare cancers!
$104
Katie +alex
Go Antonia!
$104
Brendan Leader
$101
Maeve Eikli
$101
Paul Vilner
$101
Anna Porter
$100
Anonymous
Go Vero
$100
Marc Robinson
Have fun
$100
Olivia Struthers
GO MUM!!!
$100
Jo
$100
Tony & Aloma
Go Antonia!
$54
Jonny Cordony
Goanna!
$54
Sue Liddle
Great cause Josie! Well done!
$54
Anonymous
Lunge walk it if you are serious....
$54
Fiona Neale
All the best Stephanie. Lots of love ❤️
$54
Kristina Harvey
$54
Jeremy Strutt
On ya Croochy x
$54
J Z
$54
Anonymous
$54
Christina Rust
Go chook!!!
$54
Lu Xu
$54
Mazcom
Just do it. Aide. 👍
$54
Anonymous
$54
Damien Renaut
$54
Sam Leader
Go Mum!
$54
Caroline Bowie
You’ve got this!
$54
Ben Leader
We’re proud of you Mum!
$54
Roh
You've got this Lucrezia! Kosi, Kosi, Kosi! X
$54
Sheila O Connell
Well done our Jess
$54
Justine Halligan
Well done you! 🧗🧗🧗
$54
Paul Mason
Have a great day Jo and team
$54
Carol
$54
Bernard Tindale
4th year, well done !! have fun
$54
Stephanie Gasking
Go Team Merck!
$54
Rosina Crescia
It’s a pleasure to donate to you my daughter. Go Lucrezia!
$54
Caroline Low
Well done Steph, such an important cause!
$54
Rita
Well done Jose!
$54
Annalisa Varrasso
Go Team Merck for representing us for such a GREAT cause!
$54
Rachel Attard
Good on you Joanne you are doing a wonderful thing. Good luck xx
$54
Rob Macri
To the top
$54
Sap Pacetta
Hey Josie climb high! Cheering you on from the sidelines!
$54
Debbie Waddell
Go Lucrezia ,Good luck
$54
Lila & Belle
Love you Aunty ❤️❤️❤️
$54
Shane O Connell
$54
Nicole Breschkin
Go Sonja!!
$54
Jerry Ioannou
Good effort Sonja. All the best.
$54
Lena Woodberry
Go team Merck!
$54
Ingrid
Have fun!
$54
Bernadette Berg
Congratulations Joanne!
$54
Brian And Sue Davis
Good luck Snazzy!
$54
Gerard Galea
$54
Karen
Good luck Maeve, such a great reason to climb that mountain. Best wishes for reaching your goal.
$54
Jeanette Serrao
Good on you Joanne. A very important cause
$54
Nicole Foxall
Good luck Sally, a great initiative.
$54
Stef Sng
Such a great cause to support - Go Tons!! 💪🏼💪🏼
$54
Stephanie Vilner-sheppard
$54
Joan Willows
In memory of the best editor John Sheppard.
$53
Robyn Ball
Good on you Lucrezia 🫶🏻👏🤗
$53
Jess Naimo
Go Maeve!!! What a great cause and an excellent way to get the steps in xo
$53
Everest Finance Pty Ltd
For a good cause, let’s go
$53
Elizabeth Macri
😘
$50
Vera Apostolovski
Go Sonja! GO !
$50
Jen Taylor
Good luck Cretz!!
$50
Wahida Roshan
All the best Jo, cheering you on for such a great cause,
$50
Paul
$50
James L
Great work Jo!
$50
Chimene
All the best for the walk!! It’s a great cause
$50
Elinda Spedding
Such a great cause. Go Antonia xx
$50
Tony
$50
Carmel Leahy
Best of luck Jess 👏
$50
Danielle Geard
All the best Lucrezia and team! Good luck 🤞🏻
$50
Nyssa And Matt
Great work Aunty Jose! Enjoy the view. Mylo says "You can do it!"
$50
Yifang Zhu
Good luck!!
$50
Johnny Rebel
$48
Lucrezia Struthers
$40
Felicity Mills
Well done Mumma!!
$38
Alison Mcmurtrie
All the best!
$38
Evelyn Tea
Good luck on the Kosi challenge! I am here cheering you on :)
$38
Dolly
Go Lucrezia!!
$38
Ananth Ganesan
Well done mate. Proud of you!!
$38
Sonja Dzanovski
$38
Lauren Cockroft
Go get em!!!
$38
Nathan, Jacqui, Lily, Leo & Simbie ! Macri
Well done Aunty Jose! We’re very proud of you! All our love! ❤️
$38
Yumi
加油👏🏼 go go go
$38
Vhari
Best of luck with the climb!
$38
Jenni Lincoln
Such a great cause Nic ❤️ xx
$38
Macy Tran
$38
Eliza Roche
So lovely to meet Maeve on Kozi yesterday! Well done team 😀
$35
Neil Glaser
Cheering you on!
$30
Cicely Liu
Go Go Christine!
$28
Lucrezia Struthers
We are going to have a blast! C’mon!
$28
Saeideh Ebrahim Khani
$28
Anonymous
$28
Antonia Budriah
$28
Anonymous
Good luck! Happy trekking!
$25
Sagar Thakur
Nice one Taras!
$23
Kirsty
You are a 🌟
$23
Anonymous
$23
Saeideh Ebrahim Khani
$23
Jie Xie
Go Lucrezia! 🫶
$23
Saeideh Ebrahim Khani
$23
Saeideh T
$23
Kate
Go Jess!!! Amazing work and great cause!!! ⭐️
$23
Erica Wang
So proud of you for taking on this challenge! Happy to support your climb — you’ve got this 💪🏔️
$23
Anonymous
$23
Kim Masoch
$23
Daniel Macri
$23
Louise Prestipino
Yallah habibi good luck!
$23
Anonymous
GOOD LUCK SAL x
$22
Karen Crombie
Climb every mountain! Well, just this one, to make a real difference. Wishing you fair weather and strength in your endeavour.
$22
Steph Dimovski
You’re doing a great job!
$20
Sonja
Let’s Do this Champ 💪🏻
$12
Leanne Diggle
Great job Nic. 💖
$10
Layla Dzanovski
Go Mum ❤️ Take my money!
$2
Mila Dzanovski
I love you Mummy keep on going ❤️😊🥰
Our Team Members
Josie Downey
$747
Nicole Woodhill
$201
Kerrilee Tomlinson
$609
paul vilner
$101
Niv Massami
Sally Davis Leader
$646
Jessica O'Connell
$605
Damien Renaut
$54
Joanne Galea
$1,341
Antonia Budriah
$363
Veronica Iskander
$100
Christine Wang
$679
Stephanie Vilner-Sheppard
$383
Allan Wu
Lucrezia Struthers
$675
Sonja Apostolovski
$730
Christina Salisbury
$500
Anna Porter
$1,308
Taras Diakiw
$213
Maeve Eikli
$208
Isabella Ostaric
Ed Tomlinson
$216
Our Fundraising Journey
