We're fundraising in memory of Dani and Jason
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
$528
Rob Crossman
$270
Rachel Lewis
$264
Justine Murison
Go Mrs K, go!
$250
Kathryn Joseph
Good luck for the climb Seren, great to see you supporting this worthy charity.
$140
Anonymous
Humble pie
$106
The Ellis Family
We love you Aunty Rach and are very proud of you!
$106
Holly A
$106
Natalie
You're a Champion... so so proud of you ❤️
$106
Lorena F
$106
Jake Lacayo
Inspiring Rachel! Supporting you from LA.
$101
Lily Crossman
$101
Ella Crossman
$100
Gaile Croarken
What a great way to honour your sister & help fund assistance for other people in the future. Go Rach!
$100
Mum, Dad & Esra
Forever proud of you. Love you ❤️
$72
Francine Keeling
$58
Lara Jafar
$58
Lindsay Aitken
$55
Georgia Albert
$54
Erika
Love you lilsicleeeeee
$54
Lee
Xx
$54
Pat Kerr
Good Rachel have a great day
$54
Patricia Circelli
So proud of you xxx
$54
Anonymous
$54
Jen S
$54
Cathy Chen
Rachel, go go go! You inspire us to remember the purpose of our work: time is life and patients are waiting! YTW, our families did this back 2024, and we might already meet on the mountain without recognizing each other!
$54
Louise Altes
You are a queen!!! I miss u elly ❤️🫰
$54
Cameron Flannery
🤞🤞
$54
Lynette Apostolou
Go Franny !
$54
Veronica Rivas
Go Rachel! Thank you for inspiring us. Cheers from New Jersey
$54
Anne Amoroso
Good luck, Rach! Miss you and thinking of your dear sister. I’m so sorry you lost her 🩷 Sending love to you and your family! xox
$54
Danielle Reid
$54
Sarah
$54
Jessica Yeo
🩷
$53
Aimee Le Neveu
Much love ❤️
$50
Rachael Verity
Super proud of you doing this again Seren! Good Luck on the climb x
$50
Adam Berlowski
Inspiring as always! Enjoy the walk.
$50
Sienna Phommachanh
Twin ❤️
$50
Lourdes
Good luck!! I’m so proud of you ❤️❤️
$50
Kate Ridley
5 years is inspiring ✨️
$50
Joanne Dao
$42
Chloe Bertram
$42
Orinta Tarabay
$38
Craig Stevenson
Best of luck - great cause
$38
Becky
🫶🏼🫶🏼
$38
Bella Tran
$38
Teimyi Lam
Good luck!! You got this!!! You have my full support ❤️❤️
$38
Teimyi Lam
You got this!! Good luck!! You have my full support!! ❤️
$38
Jade Baskerville
$38
Jade Baskerville
$37
Lara Santos
$35
Daniel Mcmechan
$35
Diana Krawczyk-bernotas
$30
Olivia Panetta
love you my girl❤️
$30
Lara Griffiths
GO SEREN ♥️
$30
Jess
$28
Jessica K Preston
Wishing you all the best on the day!! You’ve got this!!
$28
Petra Zajakovski
$27
Caterina Schofield
$25
Alessia Brama
go chlo !! proud of you 🩷👏
$23
Grace
$23
Anonymous
RIP to your feet.
$23
Topgem
$23
Viva
graces friend
$23
Gabby Cramp
$22
Aaliyah Thirakul
ily boo, keep it up <3
$20
Anonymous
$20
Bella
Great cause! You got this wohooo!
$17
Mariah Murad
❤️❤️❤️
$17
Anonymous
😻😻
$17
Ethan
$13
Anonymous
😚😚
$13
Anonymous
$12
Anonymous
$12
Sienna Galea
Proud of you !!
$12
Julie Bonotto
Amazing Seren 🫶 I bet you’ll smash this challenge! Best of luck on the climb ⛰️
$12
Ally Reilly
Hey mama c
$10
Milo Comerford
Hey
$10
Chloe Roll
$9
Anonymous
🥾⛰️
$8
Anonymous
$6
Oscar Sirisomphone
Hike
$6
Anonymous
Our Team Members
Lily Crossman
$293
Rachel Lewis
$1,322
Joshua Lewis
Rob Crossman
$528
Joanne Dao
$133
Ella Crossman
$424
Francine Keeling
$571
Robert Keeling
James Keeling
Adrian Neylan
Diana Krawczyk-Bernotas
$242
Seren Salih
$626
lara jafar
$112
Orinta Tarabay
$42
Stephanie Mosaad
$54
Xavier Pinto
Annika Stipanovic
Caterina Schofield
$27
Mary Tran
$6
Zach Lewis
Lindsay AITKEN
$58
Isabelle Keeling
$38
Georgia Albert
$55
Chloe Bertram
$144
Jade Baskerville
$123
