We're fundraising for...
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
$528
Martin Silk
$264
Warwick Plunkett
$250
Micah Yeung
$250
Jennifer Wong
$250
Heng & Hurst
Matched donation by Heng & Hurst
$211
Darrell Dempsey
Well done Poss Love always Dollsey
$211
Heng & Hurst
Matched donation by Heng & Hurst
$211
John Wormald
$106
Display Builders
Good luck to youand the Astellas Pharma Australia Team ! Amazing cause to be fundaising for.
$106
Brooke Collins
Well done mate and hope you're living your best life...:)
$106
Michael Burns
A great cause Mike, enjoy the climb.
$106
Katy & Colin
All the best on your climb.
$106
Jonathan Harrison
What a great cause, you’ve got this 🥰
$106
Elise, Niece, Sprogs Xxx
This made my 2025 so far reading that you’re doing this, in memory of Nana. Proud family moment ❤️ Hope the blisters have healed by July!
$106
Max Norman
Hi guys! Thank you so much for doing this for Nana and for everyone else affected. I don’t envy you walking in Aussie heat! Love you both and looking forward to seeing you in a few months.
$106
Odonchimeg Ayush
$106
Otgonbayar Togtkhbayar
Love you so much
$106
Mike Plunkett
$100
Usukhbayar N
12.12 ❤️
$73
Asha White
Show those southerners how it's done on the North.
$54
Julie Earnshaw
Love you lots xxx
$54
Deb Buch
Fantastic cause and well done for being a part of this Challenge.
$54
Adam Cairns
Good on you mate
$54
Anonymous
Well done on your continued generosity
$54
Michael Jones
Good work Mike
$54
Holly Trafankowska
$54
Ellie Rourke
Go team!
$54
Kate C
Good luck great cause
$54
Ryan Stafford
$54
Kevin & Belinda
All the best, Kevin and Belinda
$54
Christine Kemp
Hope you have a wonderful hike Mike! Well done in advance for supporting this great cause. Take lots of photos to share with us all..
$54
Megan Salon
$54
Kisahn Kersten
All the best team!
$54
William Slack
Good luck Plunky All the best Will
$53
Michael (mike) Plunkett
What a great even to be involved with Jenny: congratulations to you & the Astellas Pharma Australia Team for organising & participating in such a worthwhile cause!
$53
Michael (mike) Plunkett
Thank you for organising Astellas All Stars participation in this amazing event Tina: wonderful of you - looking forward to achieving my personal & Team donation goals!
$53
Lisa Rippon
Love you Mike my good friend x
$53
Gavin Hirst
Good on ya Mike. Hope it’s good weather on the day. Beautiful part of the world to be doing a walk!
$51
Alison Kennedy
Talk about taking fundraising to new heights!! 😆 I’m sure you will smash it!
$50
Ronda Dudley
I will always support you from a distance my darling friend xx
$50
Siddharth Oza
All the best Sir Plunkett!
$38
Stella Balogun
$38
Aaron W
Smashed the goal!
$38
Linda Zutitis
Totes amazing 💪
$38
Corrina Anderson
Let's go All Stars! Looking forward to an incredible walk to the summit with the team.
$38
Daniella Yeung
Wish it was more. Love you both and good luck. Miss mum everyday.
$37
Jenny Otgonbayar
$37
Simone Attfield
Great cause! Good on you Mikey! Xx
$37
Amy Jones
Absolutely outstanding cause!!
$37
Bilguun Odonbileg
from ur handsome cousin to my sweet sis
$37
Michelle Brownlee
$36
Jason Antonio
Love you Mike
$35
Tselmeg Ganbold
$28
Angie
Love you
$23
Chris Williams
Take my donation Mike, even though I’m retired and have no income.
$23
David Cool Guy
Kill it mince meat!
$23
Narelle Barnes
Nice work Mike, goodluck!
$23
Nicole Dive
Go Tina!!! What a great thing to do for such a great cause!
$23
Heng & Hurst
Matched donation by Heng & Hurst
$23
Uncle Phil And Auntie Ann
Great cause, good luck love auntie Ann and Uncle Phil
$21
Kaelah Reyes-braithwaite
$11
Deb O'connell
Fantastic mate, wonderful experience for a needed cause.
Our Team Members
The Naylors
$676
Richard Naylor
Jennifer Wong
$500
Michelle Brownlee
$37
Mark Latham
Catherine Latham
Micah and Mia Yeung
$1,222
Kaelah Reyes-Braithwaite
$21
Thomas Braithwaite
Martin Silk
$528
Liz Mach
Chris Higson
Mike Plunkett
$1,538
Megan Salon
$54
Jenny Otgonbayar
$501
Lynda Rigby
Elise Brown
