Please join us in supporting Australians with Rare Cancers!
The Kosi Challenge is an annual event hosted by Rare Cancers Australia (RCA) to raise awareness and much needed funds for Australians diagnosed with a rare, less common or complex cancer each year.
In March 2025, we will be climbing 2,228 metres above sea level to reach Australia’s highest point to help RCA.
One hundred per cent of funds raised through the Kosi Challenge goes towards the important work of RCA's Patient Support Team.
From helping patients to access specialists and treatments, through to delivering support groups, connecting people with services and providing financial assistance particularly in times of crisis, Patient Support is at the heart of what RCA does.
RCA is a Federal Government-classified Health Promotion Charity. All donations over AU $2 are fully tax deductible.
Thank you so much for your support.
Thank you to our Sponsors
$264
Anne Joun
$264
Anonymous
$106
Tai Phan
Oh my goodness, this is amazing, Monika! I'm so impressed by the boys too, well done!! xx Cath
$106
Gary Zamel
all the best for the trek Gary
$106
John Berry
Race to the top
$106
Margaret Jorgensen
$106
Adrian Peacock
$106
Samantha Barakat Light
Woooo Go Nic! 💪
$106
F
$106
Roxanne Maurin
$100
Catherine
Go Nicole!!
$54
Ruth Elliott
$54
Julian Abelson
Good luck Bill! Good onya mate
$54
Julian Abelson
Great work Fleur! Good luck! Josie and Jules
$54
Anonymous
$54
Bernadette Barakat
You’re my hero, Nic 🥰
$54
Julie Van Bavel
$54
Ben Gair
$54
Adam Said
$54
Daniël Brundel
Go HTALPINISTS!!!
$54
Amanda
$54
John Berry
Have a great time climbing
$54
Bec And Pete Wills
Very inspiring guys, well done xx
$54
Bec And Pete Wills
Very inspiring guys, well done xx
$54
Ceridwen Dovey
Well done on doing something so hard for such an amazing cause, Bill!
$54
Ceridwen Dovey
You’re amazing to do this hike in service of others, Fleur! We are all full of admiration for you.
$54
Kerry Isa And Jack Kelson
Slay!
$54
Miranda Hardie
$54
Carniato Family
Well done Monika and boys. Love this cause ❤️
$54
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions
$54
Ronald Grasso
$54
Catherine Church
Go you good thing!!
$54
Frank Church
Go Billy boy !
$54
Larissa De Szoeke
Go team de Szoeke!!! We love you 🥰 xxx
$54
Brett Abbenbroek
Important cause
$54
Cynthia Brunsdon
Great work Bill - good luck !! Cynthia x
$54
Cynthia Brunsdon
Well done Fleur! Great cause !! Cynthia x
$51
Vivian Au
$50
Anonymous
$50
Your Biggest Fan Babcia!
Go my lovelies, enjoy the trek and well done for doing a good thing!
$50
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions
$38
Luana
You rock Nic! Such an inspiration. Have fun. Xx
$38
Anonymous
Well done Monika, Max and Lachie x
$38
Anonymous
Go Bill!
$38
Anonymous
Go Fleur!
$38
Noah Price
$38
Lynn Rainey
$38
Nicole Kowalczyk
Go Monika 🫶🏻
$38
John & Veg
Great work Bill! :)
$38
John & Veg
Great work Fleur! :)
$38
Siobhan Rennison
Well done Bill!
$38
Siobhan Rennison
Well done Fleur!
$38
Alyce Genua
$38
Kanika Chaudhri
Amazing job Coleman!
$38
Alastair Kidd
Go Bill 🙌
$38
Alastair Kidd
Go Fluer
$38
Anonymous
Go team 💪🏻
$38
Michelle Cronan
Go team!! Think of a long bubble bath (or “bubble” bath for mum 😉) afterwards!! 💪
$38
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions
$38
Varteni Guardala
Great work De Szoeke’s!
$38
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions
$28
Granmarie Berry
$28
Jason Joe
Amazing stuff Bill.
$28
Jason Joe
Amazing job Fleur
$23
Rachel Crampton
Wow what an amazing thing to do!! And for a great cause 💪
$23
Rachel Crampton
Wow what an amazing thing to do!! And for a great cause 💪
$23
Sophia A
Hi Fleur well done for your walk! Love Sophia 💕
$23
Nick Rennison
Well done Bill
$23
Anonymous
love uuuuuuu
$23
Nick Rennison
Well done Fleur. I enjoyed you giving your dad nothing when he was filming you!!
$23
Mick Rennison
Hi Fleur expecting another great effort as per your past performances. Good luck. Mick and Tina
$23
Jess Rennison
Go Bill! Great work!!
$23
Jess Rennison
Go Fleur! Great work 🙌♥️
$23
Sue Taylor
Go Bilbo
$23
Sue Taylor
Go Fleurbi
$23
Sue Taylor
Team Taylor the best
$23
Sue Taylor
Team Taylor the best
$20
Deborah Watson
Good luck Monika Max and Lachie! You'll smash it. Xx
$20
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions
$20
Mick Rennison
Great effort Bill
$20
Gen Murphy
Great cause! Enjoy the climb x
$20
Ashleigh Rennison
Great work Bill!!
$20
Ashleigh Rennison
Go Fleur! Amazing effort!
$15
Asha
Go gorl
$12
Meaghan Rennison
$12
Great cause and fun hike 👍