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Cystic Fibrosis Trust

Ultra challenges

The name says it all - these are next-level challenges for people who are serious about going the extra mile for a life unlimited!

What is an ultra challenge?

We've got a range of challenges, from a 106km (24-hour) Isle of Wight trek to a 50 or 100km ramble along the Thames Path. These events require training and planning, but they're incredibly rewarding and give you lots of time to put your fundraising skills to the test. We have events for teams or individuals and if you're keen but cautious some offer a half-distance option.

How will you support me?

We'll be there for you every step of the way! You'll receive a personal training plan and access to our online participant area, as well as plenty of fundraising advice and newsletters in the run up to the event, and on the day we'll make sure you're well looked after by the event organisers with hot meals, a well-signposted route and physiotherapy at the end. You'll also get your very own Team CF top to wear with pride on the day!

What's the motivation?

These events raise awareness of cystic fibrosis and vital funds to help us invest in research and provide information and support to everyone affected by the condition. We're absolutely in awe of everyone who takes part and we can't wait to welcome you to Team CF!

What's the deal?

Each distance has its own registration fee that is paid to the race organisers, this place is yours along with a pledge for you to raise a certain amount of money for the Cystic Fibrosis Trust! 

Special offer! Use the code March20 for 20% off the registration price on all distances when you sign up. What are you waiting for?!

  • Full challenge: £70 or £80 registration with £395 pledge 
  • Half challenge - £60 registration with £275 pledge
  • Quarter challenge - £50 registration with £150 pledge

We have four different events to choose from, click on the below buttons to find out more!

Isle of Wight

Choose from a range of distances and start times for this unforgettable Bank Holiday weekend walk.

Tell me more


A range of distances are available for this tough but achievable jaunt across the North and South Downs.

Get the details

South Coast

Pick from 25, 50 or 100km of beautiful scenery and crisp sea air for this challenge of a lifetime.

Sign up now

Thames Path

See London in a different light with up to 100km of culture and history along the way. 

Find out more