About the 2026 London Summer Walk
Get ready for an epic adventure along London’s legendary eastern Thames. You'll explore the gateway to London with a testing 25km packed full of history, stunning views, and iconic sights.
And to top it all off, you’ll celebrate with a delicious BBQ and bar at the finish - the perfect way to wrap up an unforgettable end-of-summer adventure.
How to get started
- Choose a distance that suits you: From 10km to an epic 42km - you can tackle this route at your own pace.
- Pick a fundraising option: You'll need to reach a minimum fundraising target based on what you choose.
- Sign up on the Ultra Challenge website: By taking part in support of CALM you’ll get 50% off your reg fee.
How we'll support you
Whether it’s your first time taking on the London Summer Walk or you’re back for more, we’re here to make sure you have the best time. As part of Team CALM you’ll receive:
A CALM t-shirt or vest so you look the part on the day
Dedicated support from the Challenge Events team
Access to the CALM Walking Club Facebook group
Tips and advice to help you smash your fundraising target
Event Accessibility
Visually impaired participants are welcome to take part. To discuss your accessibility needs, get in touch with the Action Challenge team who will be happy to help.
Got a question?
Check out our FAQs or head to the London Summer Walk website. If you can’t find an answer there, get in touch and we’ll be happy to help.
