Ultra Challenge Series: Spring events

Your chance to take on challenges in some of the UK's most breathtaking locations while fundraising for The Royal Marsden Cancer Charity. An Ultra Challenge is a once-in-a-lifetime experience, and there’s something for everyone!  

Two trekkers walking along a sandy coast line, next to blue sea and sky
Date
Multiple dates
Location
Multiple locations
Event type
Walk / Trek
Distance
Various distances

Get 25% off your registration!

As The Royal Marsden Cancer Charity are an Associate Partner on the 2025 Ultra Challenge series, you’ll get a 25% discount on the ‘Full Sponsorship’ registration fee when signing up to fundraise for us!

Push yourself further with six great spring events to choose from in 2025!

Walk, jog or run at your own pace on the Ultra Challenge Series event of your choice.  With 10km, 25km, 50km,75km and even 100km challenge options available, there’s a challenge for everyone! You can join either as an individual or as a team of friends or family – the more the merrier.  

On this page:

How to take part

Registration 

Sign up via Action Challenge and make sure to choose to take on your challenge in support of The Royal Marsden Cancer Charity. Registration fees and minimum fundraising targets depend on the event, distance and funding option you choose. 

Fundraising 

You will have a dedicated member of The Royal Marsden Cancer Charity team on hand to help you with advice and tips for fundraising. We will be there for you every step of the way! 

Get ready for your trip!

Our partners at Action Challenge will provide everything you need to help you get ready for your trek, including training plans and discounts for any new gear you might need to purchase. 

Take on the challenge of a lifetime for The Royal Marsden Cancer Charity

Join us for your unforgettable adventure knowing you've raised vital funds that will transform the lives of cancer patients around the world.

A group of trekkers smiling, walking in the sunshine

Payment options

Each event offers three funding options so you can make sure the challenge is right for you:

  • Full sponsorship for charity – You'll pay a small registration fee and have a minimum fundraising target. We will pay for your event place.
  • Mixed funding for charity – You'll pay for half your place and have a smaller minimum fundraising target. We will pay for the other half of your event place.
  • Own place charity fundraising – You'll pay for your whole place so you won’t have a minimum fundraising target, we will just ask you to raise as much as you can.
Bath 50 Challenge walkers with umbrella hats

Bath 50 Challenge

Date: 29 March 2025 Location: Bath
Event type: Walk, Jog, Run Distance: 10, 29, 50km 
Fundraising target: £100-375 Registration: £20-40

(Get 25% off your registration for the Full Charity Sponsorship option!)

Taking place in the elegant historic city of Bath, with fantastic panoramic views of the city and surrounding countryside, this is the perfect opportunity to kick off the event season and challenge yourself this spring. Sign up to the Bath 50 Challenge today! 

Several walkers on a grass field with the a 'Start' banner in the background

Easter 50 Challenge

Date: 12 April 2025 Location: Windsor/Thames Path
Event type: Walk, Jog, Run Distance: 10, 25, 50km
Fundraising target: £100-375 Registration: £20-40

(Get 25% off your registration for the Full Charity Sponsorship option!)

With 50km, 25km and a new 10km option, this event is the perfect way to make your Easter an active one. Walk, jog, or run from Windsor Racecourse; whichever distance you choose, it’ll be a great way to spend your Saturday! Find out more and sign up for the Easter 50 Challenge today.

Four walkers walking towards a coastline

Isle of Wight Ultra Challenge

Date: 13-4 May 2025 Location: Isle of Wight
Event type: Walk, Jog, Run Distance: 10, 29, 54, 106km
Fundraising target: £100-575  Registration: £20-50

(Get 25% off your registration for the Full Charity Sponsorship option!)

Trek along the spectacular southern cliffs, past the iconic Needles and up to historic Cowes at the halfway stop. For Full Island challengers, it's on to the cliffs of Ventnor, and back to the welcome Base Camp in Chale after an epic 106km journey. Sign up for the Isle of Wight Ultra Challenge today to make 2025 a year to remember.

Four trekkers with backs to camera, walking on a sandy path

Jurassic Coast Ultra Challenge

Date: 17-18 May 2025 Location: Dorset
Event type: Walk, Jog, Run Distance: 25, 50, 75, 100km
Fundraising target: £100-575 Registration: £20-50

(Get 25% off your registration for the Full Charity Sponsorship option!)

Walk, jog or run a distance of your choice, along the spectacular Jurassic Coast - a World Heritage Site. With full support all the way, you can push yourself further against a backdrop of wonderful coastal scenery and enjoy a great weekend away. Find out more and sign up for the Jurassic Coast Ultra Challenge! 

View of trees and a sunset

London to Brighton Ultra Challenge

Date: 24-25 May 2025 Location: Dorset
Event type: Walk, Jog, Run Distance: 25, 33, 42, 58, 75, 100km  
Fundraising target: £275-575  Registration: £30-50

(Get 25% off your registration for the Full Charity Sponsorship option!)

The ‘original Ultra Challenge’ – join over 2,000 adventurers to take on the capital to coast route. The full 100 km route heads over the South Downs before the welcome sight of the Brighton coastline comes into view. With multiple distance options available, there’s a challenge for everyone, so why wait? Sign up for the London to Brighton Ultra Challenge today!

Two walkers smiling at each other, flowering bushes and hills behind them

Lake District Ultra Challenge

Date: 7-8 June 2025 Location: Lake District
Event type: Walk, Jog, Run  Distance: 10, 25, 50, 100km 
Fundraising target: £100-575  Registration: £20-50

(Get 25% off your registration for the Full Charity Sponsorship option!)

Join the Lake District Challenge and take on England's finest countryside at your pace. With stunning views en-route, you’ll take on tough hills, the Garburn Pass and a halfway point by the iconic Lake Windermere. Find out more and sign up for the Lake District Ultra Challenge today!

Back of trekker wearing Charity t-shirt, looking at the sea, hills and blue sky

What’s included when I join Team Marsden?

 Your registration includes:

  • Your very own Royal Marsden Cancer Charity top to wear on the day - perfect to help raise awareness!
  • One-to-one support from a dedicated member of the Charity team.
  • Training support and guides full of top tips to help you make the most of your challenge via the Ultra Challenge app.
  • Access to our fun, friendly, and supportive online community in the Team Marsden Challenge Events Facebook group