Kent Downs 50 Ultra Challenge
Take on the Kent Downs 50 Challenge, venturing around the picturesque North Downs, Aylesford, the River Medway, and the Len Valley Walk to the majestic Leeds Castle. Sign up today, and go the extra mile for almost 3.5 million people in the UK who are living with cancer.
About this event
Taking place in the ‘Garden of England’ the main 50km looped route heads anticlockwise around the Kent Downs – starting on the North Downs Way to Blue Bell Hill, around picturesque Aylesford, and following the River Medway to Mote Park at halfway for a picnic. Along the Len Valley Walk to the majestic Leeds Castle, then the North Downs Way back to the showground finish line and celebration.
Whether you join as an individual or with a team, choose from 50km, 25km or 10km distance options, and either walk, jog or run.
Plus, receive a further 50% off Charity Fundraising Places with Team Macmillan.
How to enter the Kent Downs 50 Ultra Challenge 2026
All distance options have Charity, Mixed Funding or Self Fund options.
Charity fundraising
Mixed fundraising
Self funded place
Great achievements lie beyond comfort levels - join Team Macmillan
Why should I join?
You’ll get full support and hospitality on the way, leaving you to focus on your challenge:
• Join as an individual or team
• Multiple distance options
• Camping packages available
• Take on the challenge at your own pace
• Fully supported and signed route event
• Food and drink provided
• Medical and welfare tents along the course
• Access to an exclusive Ultra Challenge event app
• Finisher’s medal, t-shirt, and glass of fizz - plus other goodies available!
How we'll support you
But most importantly...
We'll provide you with a reason to keep going because you'll know that you're helping improve the lives of people living with cancer.
Donations make up 98% of our annual income so we simply couldn't do what we do without you.
More about this event
For full information on this challenge, please visit the Macmillan Cancer Support Ultra page. You can also find the FAQs here or contact the Action Challenge event organisers directly.
Please make sure you have read our Terms and Conditions before signing up.
Ready to join?
By joining us you'll know that you're helping improve the lives of people living with cancer in the UK today.
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