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Thames bridge; with Part of the Ultra challenge series sing on top right.

2025 Thames Bridges Trek

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Date

Saturday 13th September 2025

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Location

London

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Distances

UK trek, Charity challenges, Charity runs

Get a charity place

Pick your fundraising option and select CRUK today to help fund life-saving cancer research.

Use my own place

Request your sponsorship pack and join our team.

Join 2000 trekkers as we venture 25km across the Capital taking in unrivalled views of the skyline from its best vantage points.

Setting out from Putney Bridge it's East towards the City, zig-zagging over the array of historic bridges each with its fascinating story and a midpoint stop at Kennington Oval for some snacks & drinks 25km later, it's a finish line celebration in Southwark past the majestic Tower Bridge

Your entry includes free food and drink at regular rest stops, plus support including medics, marshals and massage. As you cross the finish line, you’ll get a glass of fizz, t-shirt, and a medal to commemorate your achievement

Sign up and fundraising options

Charity sponsorship

You pay a small registration fee and fundraise, and we cover the cost of your event place! As we are an official Charity Partner – you get 25% off the standard reg fee.

Mixed funding

Pay half of the event place cost yourself, fundraise a bit less and we pay the balance of the event place cost. As we are an official Charity Partner – you get 10% off standard the reg fee.

Self-fund

You pay the full cost of the event place - fundraise whatever you want, with no set target or deadline, and there’s no cost at all to the charity!

Visit the Challenge website for all the info

Support for you

Cancer Research UK fundraisers at a bake sale.

Get help with your fundraising

Get practical advice and useful tools such as planners and posters, to help you start fundraising.

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