We're fundraising for...
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
$7.15k
Cencora Impact Foundation
$2.36k
Cencora Impact Foundation
$528
Georgina Chin
So proud of what you are doing. Would have loved to run Mt Kosi with you. This cause is also close to my heart as I lost a sister to cancer. We give with love and care and are with you in spirit as you climb Kosi. Georgina and David
$500
Byron Roach
$422
Albert & Julie
$264
Paula Connolly
How could I not support you in this cause Kellie? Clare would be very proud of you. x
$264
Christin Culme-seymour
$264
Maria And Warren Roach
Good stuff Blake. Proud of you !
$264
Ann Wong
Arigato Gozaimasu.
$264
Micheal
Go World Courier Wanderers !! Proud of you !!
$211
Patricia Oram
Thank you for removing the hedge for me, working extra for donations of this cause is amazing, enjoy the challenge.
$211
Dad
Go Ryan
$211
Warwick Shaw
Thanks for doing the climb for Clare and all patients with rare diseases
$211
Andy Nguyen
With you all the way Team World Courier Represent !!!
$206
Mario Suzanne Spiteri
Terrific team! Worthwhile cause! Go get it done Luke. We know you can do it. Mario & Sue Spiteri
$206
Dom & Georgina Luppino
A huge effort for a great cause. Sending you love and support! You ve got this!!!!
$155
Stanley Soh
$150
Sean
Enjoy the view!!!
$150
Peter Luger
$137
M R K
Wish you good luck on the big trek Nadine !!! Stay safe, stay strong and have a blast !!
$110
Bonnie Zt
Go Wanderers!!
$106
Hugo Walkinshaw
Climb well, and good luck from us all in the Walkinshaw household
$106
S&s Evile
You’re amazing brother! Proud of you and can’t wait to see you conquer this. #FckCancer 🎗️❤️🩹
$106
Liliana Ah-han
$106
Gaurav Kripalani
$106
Hendrik
$106
Otis
$106
Ulrike
I am a survivor thanks to an amazing cancer treatment! Hopefully more people are as lucky as l. Go Michael and climb!
$106
Anonymous
Viel Glück Bei Deiner Aktivität
$106
Marianne O'sullivan
$106
Anne Gin
You go girl 💪
$106
Anonymous
Good luck! great work championing this with the rest of work
$106
Team Fiapule
Cheering you on Shereen
$106
Rupert Culme-seymour
Go well Michael and enjoy the challenge
$106
Peter Bagge
Love the cause. All the best in your walk
$106
Sandor
Proud of you Kel. Such a great cause ❤️
$106
Anonymous
$106
Dee Ozolins
Go well Kel. This is such an important cause. ❤️
$106
Leonie & Bill Carroll
Magnificent!
$106
Vivian Wang
$106
Gus Da Gama
$106
Don Roberts
Malo Komasi, one for Ioanna, lofa aku gama!
$106
Audrey T
Thank you for representing Singapore for the climb. Keep healthy, stay safe and all the best!
$106
Andrew Armstrong
2 Types
$106
Callan Walker
Well done, WC Australia! A really worthy cause, well supported.
$106
Serene Tan Li Peng
Cheers ~ Big heart for a great cause! Enjoy the climb and the view !!
$106
Don Greig
Good luck Luke
$106
Dalida Sleyman
Good Luck Brother You got this 👍
$106
Anonymous
What a beautiful cause! Go Michael <3
$106
Grant Bennett
Wish I was participating this year! Will lock it in for next. Enjoy the climb Richee and cograts on the move to Sydney.
$106
Judith Lang
Well Done Blake ! A great thing for a cause close to us.
$106
Gediminas Bagdonas
Love it. A great cause, Michael…and on the double on that slope, soldier!
$106
Brent Mcpherson
GO TEAM WANDERS! Keep inspiring the world!
$106
Aaron K
Let's go Nadine! You can do it!
$106
Samantha Flynn
$106
Rickard Ingvarsson
Let’s Go Michael!
$106
Logistics360
Good luck Michael! Great purpose
$106
G P
$106
Akther Ahmed
Good cause!
$106
Maffie Villarba
Nadine, Job well done for joining the Cozy Challenge. It’s great to see new people taking part and supporting this movement for a cause. Please remember we’re all here cheering you on as you take on the challenge.
$106
Pete Russell
Great stuff, Micheal. Enjoy the hike. Cheers Pete
$106
Nil
Enjoy, and stay safe.
$106
Faye Luxton
Enjoy the climb
$106
Pbs Advisory & Coaching
Thank you for doing this Michael.
$106
Sarah Lessing
Great effort Michael!
$104
Anushka Anushka
I love you and I’m so proud of you ❤️
$101
Naji Sassine
Proud of you for taking on this challenge Tommy. Wish you the best of luck on your walk and looking forward to hearing all about it and seeing some great photos. Enjoy the experience.
$100
Raja Mohan Kulasingam
$100
Sarah Treloar
What a great cause- enjoy the hike🦘🦘🦘
$100
Peta V
Awesome work Kel 💪🏻
$100
Mark Drechsler
Proud of you
$100
Sam
The very best of luck! What an amazing cause.
$100
Tom Vanmolkot
In memory of my friend Emma who just passed from a rare cancer. Thanks for the efforts.
$100
Kellie Franken
$100
Loulou Ibrahim
Good job Luke!!!
$100
Leigh & Jamila Baf
Good Luke Luke!! 💪💙
$91
Zac Franken
Go mum!!
$85
Jono & Milly Carroll
On ya muscles! Inspirational stuff, good luck. 💪
$75
Ryan Drechsler
In Memory of Nanna ❤️
$58
Grant Bennett
$55
Tasch, Ty & Chelsea
You can do it!
$54
Rong Du
$54
Andrew Fraser
Well done Shereen. Hope you make it!
$54
Anonymous
Keep at it Michael
$54
Val Holdsworth
All the best , love Nan xx
$54
Williams Family
Alofa Aku Masi - Williams Family
$54
Pamela Ansell
Good luck Michael, one step at a time, it all helps a great cause! xxx
$54
Dragi & Meri Surbevski
Well done Luke 💪
$54
Garry Milton
$54
Anonymous
Best of luck.
$54
Jennifa Morgan
Trust you go well Andrew. Very worthy cause.
$54
Nat Dg
Go Kel!
$54
Kelly Ah-han
Good luck Macca
$54
Susan
💓Go Amazing Woman!!!! Xxxx
$54
Cath Azzopardi
$54
Nathan Leituala
$54
Miller Family
Proud of you Kel x
$54
Rachael Russell
Good on ya Blakey, Magnificent
$54
George Vlachos
Show those young boys how to do Andrew. All the best.
$54
Yvette Teo
Go Team!
$54
Mandy Holdsworth
Proud of you Blake. Great cause. Enjoy the walk.
$54
Brigitte Holtschneider
Go Michael a d team! Good luck with the climb!
$54
Mark Culme-seymour
Get some walking poles…huge difference in advanced years!!
$54
Fiapule 💪 💛
Thanks Shereen .. you got this .. do your best ..
$54
Gianinna Mercado
Great cause, Michael!
$54
Team Fiapule
You are a champion 👍 👍 Well done Kellie! Cheering you on !
$54
George Ntzios
Dear Kellie, Hope you have another great experience climbing to the top once again. Stay safe throughout the trip and enjoy every moment.
$54
George Ntzios
Hey Ryan, Great to see you took the challenge for a fantastic organisation. Have a great weekend and enjoy the experience.
$54
Anonymous
❤️
$54
Shannon
Good luck and proud of you x
$54
Deb And Matt Saunders
Great job Kell!
$54
Fiapule 💪
All the best toko .. Fe'ao famili
$54
Redmond
Good luck on your walk You must have a go on the Kokoda Track
$54
Randa Safadi
Well done Luke!!
$54
Harikiran Mudumba
All the best for the great cause, Andy.
$54
Lee Pagsolingan
Goodluck
$54
Paul Hitch
$54
Hall Family
We are proud of you…happy walking!
$54
Kalem Business Services
$54
Anonymous
Good Luck Luke! What an amazing cause!
$54
Lou-ann
All the best Michael! Enjoy the hike ahead. thanks for doing this for charity
$54
Shereen Rees-webbe
$54
Alexandra Antoniades
$54
Michael Egan
Good luck Luke !
$53
Lauren D
Good luck team. Supporting a great cause
$50
Easther Sinclair
I am so proud of you babe you are amazing i know how much you love your sister. Cannot wait to see complete & conquer the 25KM hike.. love you xxxoo
$50
Leata Faapoi
Go Masi. Proud of you, see you in March 🎀
$50
Naing Win
$50
Jana Schmidt
Super Aktion!
$50
Anysha Rees-webbe
YASS
$50
Ryan Drechsler
$50
Jane Silva
All the best Cous! Proud of you! Lots of love and blessings always xx
$50
Semih Yilmaz
$50
Valarie Lam
$50
Luke Spiteri
$50
Simin Ghaffari
Hi Michael, This Chloe’s mother, good luck! Rgds, Simin
$50
Pablo Rivas
Best of luck to the WC team for this fantastic initiative! Pablo
$50
Shirani Wethasinghe
You go girl !!
$50
N Lawson
Go Shereen! Proud of you!
$50
The Son Of Yours
Good luck and don’t forget to stretch and hydrate!
$50
Sarah Lamb
You’re amazing Kel 🙏
$50
Demi T
$50
Drew Rechner
Good luck Ryan!
$50
Anonymous
For the ones we've lost to cancer <3
$50
Marie Spiteri
So proud of you babe! You go this!
$50
Sharon Wright
$50
Betty Morris
Wonderful Gesture Blake Good Luck !
$50
Anonymous
I know this isnt a large amount but I just wanted to let you know that I am with you and here for you. Yunus Y
$50
Suby
All the best mate
$50
Muhammed Akyuz
$50
Hugh Treloar
Good luck mate keen to see some photos
$50
Chris Phillips
$40
Chloe Busseniers
Hi Michael, What a nice initiative 🫶 Good luck Xxx
$40
Sandy Chand
All the best Andrew.
$38
Anonymous
I want to wish you a great walk! May every step be filled with purpose and energy, knowing that you are walking for such an important cause. I’m sure it will be a very special moment. Congratulations on the initiative, and have a great walk!
$38
Neha Singh
Keep the good work going Michael. Keep shining and inspiring
$38
Phil Fou
$38
Dylan Berderow
$38
Katie Munroe
Best wishes from us all! K F A and M x
$38
Sabina
Well done. Hope you enjoyed the trek.
$38
Anonymous
Uso sorry o kua ou tau aku i lau fundraiser ae malo alofa aku❤️❤️❤️
$38
Jesse Bruzzese
Get it son ❤️
$38
Natalie Kirk
A great cause! Good luck Michael and to all the team.
$38
Tiotala Family
Proud of you brother!
$38
Trent Coles
Good stuff Blake!
$38
Paula Pulsoni
Go Team go! Thanks for the inspiring initiative
$38
Mark & Sabina Holdsworth
Very proud of you Blake. Go for it!
$38
Clare
$38
Maliya Meredith
Very proud of you Kel, I know Clare would be too!
$38
Mariane Souza
Well done, Thommy! That’s a great cause 👏 Good luck with the walk!
$35
Anonymous
Run
$35
Ahmet Hanoglu
$35
Daphne Busseniers
Hi Michael, Nice initiative! Each drop of sweat will be very worth it 💪💪 Enjoy!! Daphné Busseniers
$30
Chloe Busseniers
$30
Nirav Patel
Good Luck and best wishes.!💐
$30
Suby
All the best Ryan
$29
Anonymous
$28
Katherine Frankland
$28
Nicole Hovenden
Well done Kellie and the World Courier Team on the third year in a row of tackling the Kosi Challenge! Cheering you all on and well done on raising money for such a worthy cause!
$28
Marco Hogenboom
GO Michael GO! Good luck and enjoy!
$28
Lesa Straker
Good luck kel you are amazing!! Thinking of you xx
$25
Lisa Black
Good luck Luke!!! You got this go and smash it.
$25
Leah Connolly
See you at the top Kellie!
$25
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions ⚡️
$24
Thomas Sinclair
$23
Aifili Evile
You got this Bestie 💪
$23
Ethan Caddeo
Proud of you mate, go smash it!
$23
Selena Fualau
Sending hugs and love to you from us 🥰
$23
Richard Tith
“When everything feels like an uphill struggle, think of the view from the top”
$23
Brian Weber
Good Luck Andy, go get'em!!!
$23
Anonymous
$23
Richard Tith
“When you stand at the bottom of the mountain and look up at the mountaintop, the path looks hard and stony, and the top is obscured by clouds. But when you reach the top and you look down, you realize that there are a thousand paths that could have brought you to that place.”
$23
Pingfei Mao
$23
Anonymous
$23
Linda Hofer
Good luck and have fun! We're behind you! Linda, Leila and Jarrod
$23
Frances Bartolo
You've got this.
$23
Kathleen Trang
$23
Emma Dean
$23
Peter Muir
Good luck Andrew, great effort and great cause, mate! :-) Cheers, Pete.
$23
Liam Cauchi
Good luck Nadine!
$20
Nick Georgiou
Good Luck Shereen! hope you have an amazing time, will be holding a good thought for you!
$20
Anonymous
You can do it!
$20
Scott And Tina
Good luck uso
$20
Sesilia Tutu
Well Done Thomas me and Levi is proud of you.
$20
Liam Cauchi
Good luck Blake!
$20
William Lay
Good Luck Nadine
$15
Anonymous
Heyah thomas proud of you 👏
$12
Nicole Tortora
Goodluck Moey 🙌🏻
$12
Anonymous
$10
Anonymous
Good work champ
$5
Anonymous
Hope my donate would help them.
$3
Z P
for u
Our Team Members
Kellie Franken
$2,060
Thomas Sinclair
$1,141
Andrew McDonald
$514
Michael Culme-Seymour
$4,158
Nadine Al Shammary
$500
Luke Spiteri
$1,788
Ryan Drechsler
$1,075
Muhammed AKYUZ
$407
Shereen Rees-Webbe
$1,252
Blake Roach
$1,532
