When, what, and where?

 

September 13, 2025

Trek

London to Henley-on-Thames

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Costs

 

Self-fund, mixed funding and charity sponsorship options are available.

Registration deadline: mid August 2025.

 

About the event

 

England’s greatest river provides a fantastic backdrop for an unforgettable challenge. Over 3000 adventurers will join the Putney Bridge start, and the full 100km route heads upstream to Henley along the famous Towpath. It’s through Richmond, Hampton Court, Runnymede, and Windsor, with some wonderful scenery to a riverside finish line. With three quarter, half, quarter distance options also available – plus the separate 25km ‘Thames Bridges Trek’ & ‘The Moonlight 10 Walk’ through Central London as part of the weekend ‘festival’ – there’s a Thames Challenge for everyone!

By taking on a challenge event you’ll help us support over 350 babies, children and young people who are seriously unwell – helping them, and their families, to make the most of every day.

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Our events team is here to support you with every aspect of your challenge.We can talk you through the sign-up process, provide training plans and fundraising materials, and we’ll answer your questions every step of the way. You will also receive a free Noah’s Ark t-shirt!

Any questions?

If you have any questions about this or any other event, email us at [email protected] or call 020 8449 8877.