London Summer Walk
Sat 23 Aug 2025 London, UK

London Summer Walk

Get your walking shoes on and explore some of the capital’s lesser-known historic areas with a tour of the ‘gateway to London’ along the Thames’ eastern section on the distance of your choice.

3 races

  • Sat 23 Aug
  • #1 of 3
Royal Artillery Barracks, London

Marathon

07:30

Age 16 & over

£139

  • 42 km walking
  • Sat 23 Aug
  • #2 of 3
Royal Artillery Barracks, London

25km

10:00

Age 14 & over

£89

  • 25 km walking
  • Sat 23 Aug
  • #3 of 3
Royal Artillery Barracks, London

10km

11:00

Age 8 & over

£49

  • 10 km walking

Event overview

Starting alongside the grandeur of Woolwich Royal Artillery Barracks (a short walk from the Elizabeth Line, DLR, and Overground) – there is a new marathon looped route for this year which heads into the heart of the capital alongside the existing 25km option taking in Greenwich and a 10km option if you’re after something a bit shorter. Routes steeped in history with iconic sights, a lively warm up, full support all the way, and capped with a hot meal, bar and music at the finish – making for a wonderful end-of-summer celebration!

The Ultra Challenge Experience

This challenge is part of the UK's number one series of trek and trails runs for a wide range of ages, fitness and experience levels.

Choose your challenge and do it at your pace. The level of support enables you to go further, whilst enjoying the great outdoors, camaraderie, and the challenge. There are marquee rest stops, lots of food and drink, medical and massage teams, with a fully signed route to guide you.

A big finish-line celebration awaits with an amazing sense of achievement and once the aches subside you’ll feel energised, up for more of life’s real challenges – and, maybe, personal horizons redefined.

  • All fitness levels
  • Event village
  • Newcomers
  • Teams

Your challenge, your way

Whether you’re a walker and new to challenge events, an experienced trekker, a marathon enthusiast upping the distance, or a seasoned ultra runner after UTMB points – there’s an Ultra Challenge® for you! Walk, Jog, or Run at your pace, as an Individual or a Team, for a charity of your choice or just for you. There’s an Ultra March® option for ‘fast walkers’ – and a new ‘Solo Challenger’ start time to join up with others.

Best support & hospitality

This Ultra Challenge® famously lays on the best support and hospitality available on any UK endurance-style event. This enables you to step up and confidently tackle an 'Ultra' distance, with the best chance of success - and to enjoy your challenge! Here's a summary:

Before

  • Challenge app
  • Facebook forum
  • Training guides
  • Fundraising support
  • Training walks and runs
  • Video briefings
  • Travel planning

During

  • Chip timing and tracking
  • Rest stops
  • Food and drink
  • Medical support

Along the route

  • Fully signed route
  • Apps, maps and GPS
  • Route safety experts
  • Emergency response
  • Trek masters

After

  • Finish line experience
  • Finish times and certificate
  • Hot meal
  • Medical care and follow up
  • Deals on future challenges

  • Bar
  • BBQ
  • Cafe
  • Music
  • Urban

Event HQ

Royal Artillery Barracks
Woolwich
London
Greater London
SE18 6SU
UK

Map

Click here to open map

What3words

///skill.nasal.eating

A great experience, which I thoroughly enjoyed, already looking to book again!

The whole experience of walking round London but with the sunrise over Tower Bridge was brilliant.

Races at event

  • Sat 23 Aug
  • #1 of 3
Royal Artillery Barracks, London

Marathon

07:30

Age 16 & over

£139

  • 42 km walking
  • Sat 23 Aug
  • #2 of 3
Royal Artillery Barracks, London

25km

10:00

Age 14 & over

£89

  • 25 km walking
  • Sat 23 Aug
  • #3 of 3
Royal Artillery Barracks, London

10km

11:00

Age 8 & over

£49

  • 10 km walking