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London Halloween Walk Ultra Challenge 2025

Get your bravest team together of guys & ghouls or go it alone if you dare and meet up with other chilling challengers!

Why not treat yourself to a hair-raising hike around some of the City’s scary streets and historic haunts? Choose your distance, with 25km and 10km options, gather your bravest guys & ghouls to make up a team – or go it alone if you dare and meet up with other chilling challengers. Dress to distress, and our creepy dungeon keepers at The Oval start & finish will meet, greet & shock.

Once you escape there’s ghostly looped routes, with zombie rest stops, and if you manage to get back in one piece there’s a macabre medal, a glass of the Devil’s fizz, some horrific hot food & drink – and a souvenir bobble hat to ward off the spirits as you head off home. Join as an Individual or as a team, and do it for yourself and self fund, or support one of our Charity Partners with much needed fundraising.

What you’ll get:

  • ✓ Sign up from £10
  • ✓ Inclusive & fun event with a great atmosphere and camaraderie
  • ✓ Choose your distance, with 10km or 25km options
  • ✓ A fully signed route, with a team of ‘Trekmasters’ out on the trail with you
  • ✓ Indoor rest stops, with free food & drink, massages and medics
  • ✓ An epic finish line moment, with a glass of fizz, medal and t-shirt
  • ✓ Full fundraising support, and a choice of fundraising options

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.

Autumn Deal

Receive an additional 25% discount off registration fees (on top of existing discount)

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
10km Challenge£10£100
25km Challenge£20£240

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
10km Challenge£22.50£70
25km Challenge£50£150

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
10km Challenge£39
25km Challenge£89

To sign up or find the full details of this great Challenge, and the full range of Ultra Challenges, click below:


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 25th October 2025

Where: London

Registration fee: £10-£89

Get a 50% discount on the ‘Full Sponsorship’ registration fee when signing up to support us!

Fundraising: £70-£240

Type: Walk

Distance: 25km Challenge and 10km Challenge

Supporting you

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