Thames Bridges Trek

Sat 13 Sept 2025

Part of the famous Thames Path Challenge

Join 2500 walkers and trek 25 km across the Capital with unrivalled views of the skyline & landmarks. From a Putney Bridge start it’s East towards the City, zig-zagging over 16 historic bridges, each with a fascinating story – and a mid-point rest stop at The Oval Cricket Ground for snacks & drinks. 25 km later, beyond the majestic Tower Bridge, it’s a party style finish line celebration & afternoon picnic in Southwark Park.

+ THAMES 10K Option - Oval Cricket Ground Start!

The Ultra Challenge Experience

Endurance events for a wide range of fitness & ages. Choose your Challenge – do it at your pace, and there’re 18 events in the Series. Our support enables you to go further, whilst enjoying the great outdoors & camaraderie. There’re marquee rest stops, lots of food & drink, medical & 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, and up for more of life’s real challenges!

Good preparation & smart planning are key to successfully completing an Ultra Challenge. From the moment you sign up you’ll have access to our Challenge App, with training guides, optional training walks & runs, maps, on the day info, and online forums. We will also keep you updated with any news & challenge updates via notifications through the app and emails. 

Keeping you well fed & hydrated is key to getting you across that finish line successfully & safely. Whichever distance you are signed up every meal and snack stop is included in your entry so you can expect:

  • Regular snack stops every 12.5 km
  • Meal/food every 25 km
  • Hot drinks, water & energy drinks at all stops 
  • We cater for every dietary requirement
  • Finishers picnic

We have Rest Stops every 12.5 km or so with ‘major’ ones at ~25/50/75/100 km. Our Rest Stops are like no others – along side a large medical area and catering services, they are all covered infrastructure (to keep you out of the sun or rain!). Here you will be able to sit down and put your feet up & use any of the facilities (toilets, medics, changing rooms, rest areas, baggage pick up). Manned by our team to help with any query or questions you have!

The route will be fully signed meaning that you won’t need to use a map! You’ll see hundreds of reflective PINK ARROWS to guide you and KM markers so you know how far you’ve gone (and have left to go!). You’ll also see hazard signs where you need to take extra care, and after dark the route will be re-signed with glowsticks & flashing lights. We also organise group departures led by our Trek Masters overnight so you don’t ever have to walk alone. 

Keeping you safe and healthy is our upmost priority. We have a vast, experienced team of Doctors, Paramedics, First Aiders, Podiatrists and Masseuses available and on hand at every Rest Stop (as well as roaming the route). You will also have access to a ‘self help’ area at every stop with blister plasters, talcum powder & more should you just need tape yourself up!

We don’t ever want you to forget that moment you reached your goal and crossed over the finish line – our Cheer Squad will ensure that you don’t! You will be given a medal, finisher’s t-shirt, glass of fizz and a photo finish! You can then make the most of your finisher’s meal & enjoy a well earned sit down and rest. 

Looking for a great event for your team without all the hassle, risk, or costs of organising it? These events are the PERFECT solution – and we had over 300 company teams joining us in 2025.

Your Team will be energised, exercised, bonded & motivated on a fun, accessible, safe, high quality outdoors event. With optional hospitality packages available – make an Ultra Challenge® your company’s special event & maybe support your charity of the year.

FIND OUT MORE >>

Get in Touch:

corporate@actionchallenge.com

25 km – flat route, as it follows the Thames!

Start location: Bishops Park, Fulham

Start times: 10:00 – 12:00 

Finish location: Southwark Park, East/ Central London

Finish times: 4 – 7 hrs (any finishers coming in before on a jogging/ running time will be disqualified)

10 km & flat! Walking only.

Start – The Oval Cricket Ground (easy to get to). Tea. coffee, snacks.

Start Time – 10.30 – 11.00 am Saturday 13th Sept

Route – follow the arrows! Crosses Millennium Bridge,  Southwark Bridge, London Bridge and Tower Bridge.

Finish – Southwark Park, with a great atmosphere, celebration, medal, T-shirt, glass of fizz – and a picnic lunch.

Transport – good Tube links, both ends.

VIEW 10K ROUTE >>

Our rest stops & finish line are fully supported with toilets, medics, event managers, crew & covered seating areas.

  • 12.5 km (The Oval Cricket Ground)  – pastries, fruit, snacks, & hot drinks
  • 25 km – finishers picnic
  • There is no official parking at the start/ rest stops or finish line.
  • Public transport options are very available at each location.
  • Nearest tube station for the 25km start – Putney Bridge (District Line).
  • Nearest tube station for the 10km start – Oval or Vauxhall.
  • Nearest tube station for finish – Bermondsey, Canada  Water, Surrey Quays.

Please note this challenge is a ‘walk/ trek / hike’ only – NO running / jogging allowed.

Your Challenge,
Your Way!

Whether you’re a walker and new to challenge events, a regular hiker, or someone who just wants a great day out in one of the world’s greatest cities, the Thames Bridges Trek is for you! Walk as an Individual or as a Team of friends, for a charity of your choice or just for you. The challenge is fun, safe, and rewarding & with full support all the way, enjoy the best of London, its landmarks, and 16 historic bridges.

CHRISTMAS Deal

PAYMENT PLAN OPTION

+ FREE Tech T Shirt worth £20

+ FREE New Year Virtual Challenge

+ SAVE up to 75% OFF Reg Fee!

+ FREE Iceland Challenge Prize Draw

ENDS MIDNIGHT CHRISTMAS DAY

Excludes: Winter & Halloween Walks, & 10K/mile events

How to Join

For yourself - or support a charity

Payment Plan Now Available!

Do it for yourself & JUST Self Fund

Pay for your event place in full, with no charity involvement. Prices vary by distance – sign up & pay online today!

Do it & support a charity of your choice

Pay a Registration Fee and then commit to fundraise / get sponsorship for your Charity. 3 Options are available.

'MULTI DEALS' for 3 events or more. SAVE up to 25%!

2025
FACTSHEET

All you need to know about the Challenge & how you can take it on. Print it off - or send it to your friends!

Check out
the routes & maps

Corporate Teams

Looking for an event to get your team energised - download our information sheet.

Also part of the Thames Bridges Festival

A weekend of riverside events…

Fri pm 12 Sept

Thames Moonlight 10 Walk is a fun 10km or 10 mile looped route with a start at The Oval. There’s hot food  – ideal for groups & teams for a fun Friday evening.

Sat 13 Sept

25 km , 50 km, or 100 km options stretching from Putney Bridge to Henley-on-Thames. Walk, jog or run along this stunning route with full support all the way.

Sun 14 Sept

Take on 10K with a riverside start / finish. A beautiful route as a walk, jog or run at your pace. Families & teams are welcome +  there’s a finishers BBQ option.

Choose your charity

We’re proud to work with a wide range of UK charities which benefit from the Ultra Challenge fundraising which exceeded £10 MILLION in 2024. Our main ‘Series Partners’ are some of the UK’s major national charities – all of which will fully support your fundraising endeavours. For our WINTER DEAL, with the ‘Full Sponsorship for Charity‘ option, you can sign up for ANY of the 600+ Charities involved at an additional 25% OFF. Choose a Charity, sign up, and set up your JustGiving fundraising page NOW.

OFFICIAL PARTNERS
50% OFF FULL SPONSORSHIP FOR CHARITY REG FEE

2025 ASSOCIATE PARTNERS
25% Off Standard Reg Fee

OR CHOOSE FROM over 600 LISTED CHARITIES

OUR OFFICIAL FUNDRAISING PARTNER

18 Amazing Challenges

200,000+ adventurers have done an Ultra Challenge®, and the 18 events make up the UK’s biggest & best series of treks & trail runs – which have raised £60+ million for UK charities. Whichever challenge you choose, you’ll get full support so you can set a new goal, enjoy the British countryside, and Push Yourself Further! Whoever you are – If you’re up for a challenge, it has to be an Ultra Challenge®

Map

Lake District Ultra Challenge

7-8 June 2025

100 km loop + Half  + Marathon + Quarter Challenge options & Ambleside 10K

FULL DETAILS >

1 of 17

Isle of Wight Ultra Challenge

3-4 May 2025

106 km ‘Full Island’ Loop + Half & Quarter Island options AND  ‘Cross Island’ & Medina 10 Mile challenges.

FULL DETAILS >

2 of 17

London 2 Brighton Ultra Challenge

24-25 May 2025

100 km + Half, Marathon & Quarter Challenge distance options + Brighton 25 km Loop!

FULL DETAILS >

3 of 17

South Coast Ultra Challenge

6-7 Sept 2025

100 km + Half & Quarter Challenge options

FULL DETAILS >

4 of 17

Jurassic Coast Ultra Challenge

17-18 May 2025

100 km + Half & Quarter Challenge options AND Marathon & Bridport 10K

FULL DETAILS >

5 of 17

Thames Path Ultra Challenge

13 – 14 Sept 2025

100 km + 3/4 + Half & Quarter Challenge options & Henley 10K

+ Thames Bridges 25km Trek (Sat – Central London)

+ Friday Moonlight 10K Walk (Central London)

+ The Henley 10K (Sunday)

FULL DETAILS >

6 of 17

South West Coast 50 Ultra Challenge

2 August 2025

50 km Loop + 25 km & 10 km Challenge options

FULL DETAILS >

7 of 17

The Bath 50 Ultra Challenge

29 March 2025

50 km Loop + 25 km & 10 km Challenge options

FULL DETAILS >

8 of 17

Gower Peninsula Ultra Challenge

19-20 July 2025

100 km (fig. of 8) 50 km Loops (West & East) + Marathon + 25 km & 10 km Challenge options

FULL DETAILS >

9 of 17

Peak District Ultra Challenge

28-29 June 2025

100 km (Fig. of 8) + Half (loop) & Quarter Challenge options & The Bakewell 10 Mile. 

FULL DETAILS >

10 of 17

Cotswold Way Ultra Challenge

21 – 22 June 2025

100 km + 3/4 + Half & Quarter Challenge options. + Cirencester 10K

FULL DETAILS >

11 of 17

Chiltern 50 Ultra Challenge

27 Sept 2025

50 km Loop + 25 km & 10K Challenge options

FULL DETAILS >

12 of 17

North Downs 50 Ultra Challenge

12 July 2025

50 km Loop + 25 km & 10km Challenge options.

FULL DETAILS >

13 of 17

Easter 50 Ultra Challenge

Sat 12 April 2025

Windsor

50 km, 25 km, 0r 10 km Loops from racecourse basecamp.

FULL DETAILS >

14 of 17

London Winter Walk

25 & 26  January 2025

Marathon, Half Marathon, 10 km or 5 km looped routes – The Oval Start / Finish

FULL DETAILS >

15 of 17

London Halloween Walk

Sat 25 October 2025

25 KM or 10 KM spooky looped route options. Start / finish – The Oval Cricket Ground ‘dungeon’,

FULL DETAILS >

16 of 17

NEW – Kent Downs 50 Ultra Challenge

Sat 11 October 2025

50 KM, 25 KM or 10 KM looped routes options. Start / finish – The Kent Showground nr. Maidstone.

FULL DETAILS >>

17 of 17

X MAS deal

FREE branded T-shirt

(ALL Funding Options. T-shirts mailed to you)

+ SAVE ££'s OFF REG FEE

- SELF FUNDING - 'DUO DEAL'

Sign up to 2 Events – 10% OFF EACH

Use Checkout Discount Code:  DUODEAL25

EG – Choose two 100km Events – SAVE ~£40!

+ New Payment Plan Option

- Full Charity Sponsorship

SIGN-UP – SAVE UP TO 75%

(Use Discount Codes on Charity Sign-Up Pages)

+ You'll be Emailed Invite to FREE NEW YEAR VIRTUAL CHALLENGE

+ You'll be entered into our ICELAND CHALLENGE FREE PRIZE DRAW

DEAL ENDS - 25 DEC '24

. DUO CODE can only be used on 2 events.
. Deal Excl. Winter & Halloween Walks & on 10k/10 mile
. Other Deals can't be used with Christmas Deal

SELF FUNDING FOR YOU

PAY FOR YOUR PLACE IN FULL. NO CHARITY INVOLVEMENT. BEST VALUE 'MULTI DEAL' OPTION ALSO AVAILABLE.

25km CHALLENGE

£89 Reg Fee paid online

SPECIAL DEALS...

MULTI DEAL - for 3+ events - Up to 25% OFF & Payment Plan* Option

YOUNG PERSONS - age 21 or younger 20% OFF
* Conditions apply

SUPPORT A CHARITY

PAY A REGISTRATION FEE ONLINE & ALSO FUNDRAISE FOR A CHARITY OF YOUR CHOICE.
3 OPTIONS - WITH DIFFERENT REG FEES & associated FUNDRAISING TARGETS

1. FULL sponsorship

Pay a small Reg Fee & fundraise to a minimum target, with at least 50% due 3 weeks prior to the event (Charity pays for your Challenge place).
EG - Quarter Challenge £20 Reg Fee & £240 Fundraising

2. Mixed Funding

Pay half the event place & also fundraise with a lower target - 50% due 3 weeks prior (Charity covers the balance of your place cost).
EG - Quarter Challenge £50 Reg Fee & £150 fundraising

3. Own place fundraising

Pay full cost of your event place & also fundraise whatever you can for your Charity. NO targets or deadlines & NO event cost for your Charity!
EG - Quarter Challenge £89 Fee & raise what you can!

Reg Fees & Fundraising vary by DISTANCE.
You'll get full support from your chosen charity.
For full details head to the 'SIGN UP NOW' page.

Corporate Team Enquiry Form

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Hounds for Heroes
Royal Air Forces Association
Royal Navy and Royal Marines Charity
Royal Star & Garter
Scotty’s Little Soldiers
SSAFA, the Armed Forces charity
VETERANS WITH DOGS
Who Dares Cares

Action Village India
ActionAid UK
African Adventures Foundation
African Children’s Fund
CAFOD
Challenge Ministries UK
Concern Worldwide (UK)
Dig Deep
Frank Water
FutureSense Foundation
HIPZ – Health Improvement Project Zanzibar
IF Charity
Last night a DJ saved my life foundation
Malaria No More UK
Medecins Sans Frontieres UK
Mehiel Foundation
New Futures Nepal
Novo Communities
Raising Futures Kenya
Refugee Action
Release International
SALVE International
Sense International
Sightsavers
Tearfund
Village Africa
WaterAid

4Louis
Age UK Bexley
Age UK Bristol
Age UK Kent Rivers
Age UK West Sussex Brighton & Hove
Alexandra Rose Charity
Amnesty International UK
British Red Cross
Bromley Borough Foodbank
Camden Giving
Carers UK
Centre for Women’s Justice
Centrepoint
CHESS Homeless
Christians Against Poverty
City Life Church Southampton
Connection Support
Crisis UK
FearFree
Framework
HostNation
Imago Dei
inHope (Bristol) Limited
Jimmy’s Cambridge
Lighthouse Construction Industry Charity
London City Mission
Mencap
New Hope, Watford
Porchlight
Rainy Day Trust
Refuge
Refugee Support Europe
Shelter
Society of St Vincent de Paul (England & Wales)
SPEAR
Spires
St Mungo’s
Thames Valley Air Ambulance
The Ehlers-Danlos Support UK
The Felix Project
The Fire Fighters Charity
The Lockton Charitable Association
The Passage
The Trussell Trust
Turn2us
Turning Tides
Walton Charity
WAY Widowed and Young
Wells Storehouse Foodbank & Furniture Store
Women’s Aid Federation of England
Wycombe Homeless Connection

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The Ultra Challenge Team