Skip to main content
Fundraising Events

Thames Twilight 10 Ultra Challenge

10 September 2027

Charity funding Self funding
big ben with a full moon in the background
Charity funding Self funding
Take on an energetic 10km or 10mile walk through London as the sun sets over the capital’s iconic skyline. Starting and finishing at The Oval Cricket Ground, you’ll walk past London’s most famous landmarks including St Paul’s, Westminster Abbey, Tower Bridge, the London Eye and more. Join more than 1,000 Challengers all getting outdoors to celebrate the end of Summer whilst fundraising and making a real difference with your Challenge.

How to enter

There are 2 entry options for our Thames Twilight 10 Ultra Challenge.

Charity funding

Pay a small registration fee and commit to a fundraising target. BHF will cover the cost of your event. As BHF is an official Ultra Challenge Series partner, we're offering Charity Funded places for just £10 (excluding 10km and 10-mile challenges) until 30 November 2026. Use the code BHFDEAL10 at checkout to claim your discounted place.

10km distance

  • £20 registration fee
  • £150 fundraising target

10 miles distance

  • £20 registration fee
  • £150 fundraising target

Self funding

As a Self Funder you'll pay the full cost of the event place. And you can fundraise however much you'd like.

10km distance

  • £59 registration fee

10 miles distance

  • £59 registration fee

To take part, you must raise the minimum sponsorship for your distance. We require half of your fundraising target 4 weeks before the challenge to secure your place.

Please note these events are organised by Ultra Challenge. Participants raising funds for British Heart Foundation will be joined by others, raising money for different charities. Find out more on the Ultra Challenge website.

10 September 2027
London
£20 - £59
6.2 miles / 10 km
Charity funding entry I have my own place

Your entry includes:

  • a BHF running top or vest
  • free training plans and support
  • free food and drink at regular rest stops
  • a fundraising guide with information and tips
  • regular support from BHF 
  • access to our Team BHF Facebook group.

The easiest way to start fundraising is by setting up a JustGiving page.

You can share your page with friends and family and on social media.

We also have a wealth of fundraising resources for you. You can:

You might be an experienced hiker, or this might be your first longer hike. Either way we’d recommend some training before taking on this kind of challenge.

In order to help you reach the finish line, we've put together some top tips on nutrition and some hiking training schedules.

Learn about nutrition for sport

See our hiking training plans

Ready to walk with purpose? Check out our video to get inspired by stunning scenery and George's story.

Contact us

Our Customer Care team is available Monday to Friday from 9am to 5pm.

If you have a question you can reach them on:

Tel: 0300 330 3322

WhatsApp: 07581 016513

Email: [email protected]

To find out more, or to support British Heart Foundation’s work, please visit www.bhf.org.uk. You can speak to one of our cardiac nurses by calling our helpline on 0808 802 1234 (freephone), Monday to Friday, 9am to 5pm. For general customer service enquiries, please call 0300 330 3322, Monday to Friday, 9am to 5pm.

British Heart Foundation is a registered Charity No. 225971. Registered as a Company limited by guarantee in England & Wales No. 699547. Registered office at Greater London House, 180 Hampstead Road, London NW1 7AW. Registered as a Charity in Scotland No. SC039426