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London Summer Walk 2025

Get active & explore some of the Capital’s historic areas with a tour of the ‘gateway to London’ along the Thames’s eastern
section at the London Summer Walk Ultra Challenge.

Starting alongside the grandeur of Woolwich Royal Artillery Barracks (short walk from the new Elizabeth Line station!) – the full 50km looped route heads through Charlton, along the Thames Path to Greenwich and the O2, Old Royal Naval College & the fabulous Cutty Sark, then onwards through central London – crossing the Thames via the Millenium footbridge. It’s then past the Tower of London, and on to the Olympic Park, before returning to Woolwich via the foot tunnel. A route steeped in history with iconic sights, and capped with a BBQ & bar at the finish – making for a wonderful end of summer celebration!

As The Brain Tumour Charity are an official partner on this event, you get a 25% discount on the ‘Full Sponsorship’ registration fee when signing up to support us.

What you’ll get:

  • ✓ Sign up from £10
  • ✓ Inclusive & fun event with a great atmosphere and camaraderie
  • ✓ Choose your distance – 10km, 25km, or 50km options
  • ✓ Walk it at your pace!
  • ✓ A fully signed route, with a team of ‘Trekmasters’ out on the trail with you
  • ✓ Regular covered rest stops, with free food & drink, massages and medics
  • ✓ An epic finish line moment, with a glass of fizz, medal and t-shirt
  • ✓ Camping, transfer and parking options to make getting there & away easy
  • ✓ Full fundraising support, and a choice of fundraising options

Click here for full details of prices and to sign up:


Fundraising options:

Full Charity Sponsorship

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

DistanceReg FeeFundraising target
50km Challenge£40£375
25km Challenge£30£275
10km Challenge£20£100

Mixed Funding

Pay half of the event place cost yourself, fundraise a bit less and we pay the balance of the event place cost.

DistanceReg FeeFundraising target
50km Challenge£75£225
25km Challenge£50£150
10km Challenge£22.50£70

Self Funding

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!

DistanceReg Fee
50km Challenge£139
25km Challenge£89
10km Challenge£39

Click here for full details of prices and to sign up:


Important information from the event organiser

All sponsorship goes directly to the Charity via your online fundraising page. At least 50% of the sponsorship target should be with the Charity 3 week prior to the Challenge. At this time, the Charity agrees to pay a fee for your place to the Organiser (similar to the Self Funding cost – or half of it for Mixed Funding as you’ve already covered half). Failure to meet the deadline may result in cancellation of your place by the charity. The remaining 50% and any extra, should be with your Charity by 4 weeks after the Challenge.

This event is organised by Action Challenge.

If you have any questions, don’t hesitate to get in touch with the events team events@thebraintumourcharity.org or call 01252 237867.


Event details

When: Saturday 23 August 2025

Where: Woolwich, London

Registration fee: £20 – £139

Get a 25% discount on the ‘Full Sponsorship’ registration fee when signing up to support us!

Fundraising: £70 – £375

Type: Walk

Distance: 50, 25 & 10km options

Supporting you

You’ll receive support from the Challenge Events Team including: