Dialog Box

10 years of the Kosi Challenge

The Kosi Challenge began in 2013 with Rare Cancers Australia’s co-founders Richard and Kate Vines embarking on the Parliament to Peak walk from Canberra to Mount Kosciuszko in an effort to raise awareness for rare and less common cancers.

Since then the Kosi Challenge has grown bigger than Richard and Kate could ever have dreamed.


Over 2,000+ Kosi Challengers in 10 years

$3 million+

In excess of $3 million raised for patients diagnosed with a rare or less common cancer

450+ km's

Over 450+ km's climbed for Australian's living with a rare or less common cancer


An estimated 520,000 Australians diagnosed with a rare or less common cancer since the Kosi Challenge started

Why we climb

Currently, there is little support for people with a rare cancer. The mortality rate is extremely high. Every year there are over 52,000 diagnoses of rare or less common Cancers and around 25,000 deaths. Coupled with the exorbitant financial burden of non-subsidised treatments, most patients struggle to access information and care.

No Australian should have to go through their cancer journey alone.

Find out more
raised by 5 fundraisers with over 4 donations

Help us reach our $500,000 goal


Virtual Kosi Challenge

2021 was our biggest Kosi yet! This year is no different we want to go bigger and better for those diagnosed with a rare and less common cancer. With restrictions on how many participants can climb Mount Kosciuszko, we are offering the first-ever Virtual Kosi Challenge for those who can't join us on the day.

The challenge is simple, walk or run 25 km's between the 1st - 19th of March in memory of the 25,000 Aussies who lose their battle every year. If you wish for a harder challenge you can also choose to go further.

Find out more

Kosi FAQs

When is the event and what time does it start?

Kosi Challenge is an all-day event on Saturday, 19th March 2022. You must select a start time for your commencement. Due to the high number of participants, it is crucial that you adhere to the times and arrive 20 minutes prior to your start time to allow for registration and event briefing.

Those wishing to take the Chairlift option must choose a start time from 9.00am onwards, as the Chairlift will not be open prior to 9am.

Start times are:
  • 7.15 am Merritts Track walkers only
  • 7.30 am Merritts Track walkers only
  • 7.45 am Merritts Track walkers only
  • 8.00 am Merritts Track walkers only
  • 8.15 am Merritts Track walkers only
  • 8.30 am Merritts Track walkers only
  • 8.45 am Merritts Track walkers only
  • 9.00 am Merritts Track and/or Chairlift
  • 9.15 am Chairlift only
  • 9.30 am Chairlift only

All walkers in all groups have the option of taking the chairlift down the mountain – this is complimentary. But only those who have prepaid and pre-purchased a chairlift ticket can take the chairlift up.

How do I register and when do registrations close?

Go to the registration page. Online registrations close at 12pm on Friday 11th March 2022. Depending on numbers, event registrations may close earlier.

Registration for the Virtual Kosi Challenge will remain open until Saturday the 19th or March.

What are the costs? (event registration, chairlift passes, accommodation, and national park entry)
  • Registration: $80.00
  • Chair Lift Pass $15.00
Child (under 15)
  • Registration $30.00
  • Chair Lift Pass $11.00

Discounted accommodation is available for participants. Please contact Nicole Thrum, Events & Groups Manager Thredbo, direct on 02 6459 4184 and mention Rare Cancers Kosi Challenge to receive your discounted room rate.

If you drive your car into the National Park you will be required to purchase a Parking Pass. The cost is currently $17.00 per car per day. 

See website for further information.

What does my registration fee cover?

The registration fee covers administration, event insurance, associated fees and promotion. It also includes a RARE cap which you will be handed when you arrive the morning of the Kosi Challenge.

Since its launch in 2013, the event has raised awareness and funds for our cause.