- Sat 23 Aug 2025
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.
This event is part of London Summer Walk.
Event photos
Event video
- 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
- 1 lap
- Distance markers
- First aid
- Flat
- Marshals
- Way markers
Overview
Family-friendly route!
From the Woolwich Barracks start, it’s down to the River Thames and along to the Thames Barrier. then through Maryon Wilson Animal Park and Charlton Park before heading back to the Woolwich basecamp – where a big cheer, medal, glass of fizz, T-shirts and BBQ meal await!
Map
- Event app
- Map
- Medal
- Post-race meal
- Training plan
Included
- Summer Walk neck buff
- Rest stop with snacks and drinks
- Medics and full suppo
- Summer Walk medal and certificate
- Finishers meal and drinks bar
Charity places
These charities have places in the event. To secure your place, select a charity and provide your details.
All charity places
Children
Great Ormond Street Hospital Children's Charity
Helping the hospital offer a better future to seriously ill children across the UK.
- Fundraising support
- Fundraising materials
- Dedicated contact
Sign up
£10
Fundraise
£150
Children
Make-A-Wish UK
Creating life-changing wishes for children with critical illnesses.
- Running vest
- Fundraising support
- Fundraising materials
- Training plan
- Online training zone
- Dedicated contact
- Certificate
Sign up
£15
Fundraise
£150
Cancer
Macmillan Cancer Support
No one should have to face cancer alone.
- Fundraising support
- Fundraising materials
- Dedicated contact
Sign up
£10
Fundraise
£150
- Age 8 & over
- Entries open
- to 25/07/2025
- Charity places
- Enter online
- Event merch available
Under 18s need to be accompanied by an adult.
Entry fees
Entry fee
£49.00
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.