Diana Nielson

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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.

My achievements

First donation received

Raised 50% of your target!

Raised 75% of your target!

Page personalised

First blog post published

Page shared

Target increased

Target reached

Challenge conqueror!

Thank you to my sponsors

$106.12

Liz Nielson

Good luck Di!

$106.12

Ollie, Rach And Poppy Mathias

Goooo Mum!! Great cause xx

$106.12

Rowan Stewart

Amazing Didi. Awesome trek. You go!!!!

$106.12

Ben Wicks

Go Di! Love Ben, Kris, Liv, Josie and Pat

$106.12

Fi And Luke Anderson

Go mum!

$106.12

Diana Nielson

$106.12

Simone Creagh

You’ve done it again ! X

$100

Vicki Caesar

You go girlfriend🥰

$54.12

Ali Dignan

Good Luck Didi

$54.12

Bansi Sanghvi

$54.12

Anka Baric

Goooo Didi, you’re amazing!! All the best for the big day xxx

$54.12

Lisa O’brien

♥️

$54.12

Joanna Hamilton

$38.33

Penny

Go hard Didi. Xx Grannies can everything!!!!

$38.33

Suzanne Horsley

Go you good thing!

$27.81

Christine Byrne

Good luck Didi! Hope it’s amazing, great cause

$25

Emma Rolley

Happy hiking and adventures Didi and for a great cause to solve cancer Xx