Thames Moonlight 10

Friday pm - 12 SEPT 2025

Take on either a spirited 10 km or an energetic 10 mile looped route walk through the heart of London as darkness falls and the Moon rises – and fundraise for Great Ormond Street Hospital.  Experience London in a different light, passing famous landmarks – including St Paul’s, Westminster Abbey, Tower Bridge, the London Eye and more. A lively finish line awaits – with a glass of fizz & a special Moon medal – followed by some welcome hot food & drink.

WHAT YOU CAN EXPECT...

The Thames Moonlight 10 Walk is safe, fun and rewarding – with full support & great hospitality. Ideal to take on as a team of friends, family, or work colleagues – or join as an individual and meet others whilst seeing our magnificent capital at its best on a Friday night to remember!

Fundraise for a charity of your choice if you wish to.

Event is Walking Only

10 km ROUTE

10 MILE ROUTE

How to Join

Sign up online & pay a Registration Fee. You’ll get a confirmation email, which includes a ‘link’ to set up your online JustGiving sponsorship page. You’ll also get access to the ‘Challenge App’ which holds all the details about the event.

Choose how you want to join the Challenge  – register via that option and its associated online form. Then enter your personal details.

  • Option 1 – Sponsorship for Charity
  • Option 2 – Mixed Funding for Charity
  • Option 3 – Own Place Charity Fundraising

 

* A ‘Platform Booking Fee’ of 3% is applied to all event registrations.

Confirm the challenge distance and then select a provisional start time slot (actual start times are confirmed 4 weeks prior to the event, and for Teams – it will be as per the Team Captain’s choice)

Everyone has to register as we require personal details & declarations. Within the form you can choose to ‘Create’ or ‘Join’ a Team. Teams can be of any size – members can opt for the same or different funding options, charities, or distances.

  • Create a Team – you become the Team Captain. You need a Team Name, and a Password for others to join. Then invite friends & family to join you!
  • Others join the Team as they register, by searching for the Team Name & using the Password
  • Team Start Time – is as per selected by the Team Captain

All sponsorship goes direct to the Charity via your online JustGiving page. At least 50% of the ‘sponsorship target’ should be with the Charity 3 weeks 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 your charity.

The remaining 50%, and any extra, should be with your Charity by 4 weeks after the Challenge.

 

There’s a range of optional extras designed to make the planning for, and joining, your challenge easier. Sign-up to your chosen Challenge first – and you can then book any optional extras later / separately (see below for details).

Looking for a great event for your team without all the hassle, risk, or costs of organising it? These events are the PERFECT solution!

Your Team will be energised, exercised, bonding & motivated on a fun, accessible, safe, high quality outdoors event. With optional hospitality packages available – make an Ultra Challenge® your company’s special event in 2025 – supporting your ‘charity of the year’.

FIND OUT MORE >>

Get in Touch:

corporate@actionchallenge.com

Costs & Fundraising

Select your Option below to start the sign-up process. Reg Fees are paid online & Fundraising goes to the charity via an online JustGiving sponsorship page that you’ll need to set up (look for the link within the ‘Confirmation Email’ you’ll receive).

With ‘Full Sponsorship For Charity’ (Option 1) – the Reg Fees below are 50% OFF standard fees – as you’ll be fundraising for an official SERIES CHARITY PARTNER 

Option 1

FULL SPONSORSHIP
FOR CHARITY

Pay a small Reg Fee & Fundraise for a chosen Charity (who pay for your place)

10 Mile CHALLENGE

£10 Reg Fee & at least
£150 fundraising/sponsorship

10km CHALLENGE

£10 Reg Fee & at least
£150 fundraising/sponsorship

Option 2

MIXED FUNDING
FOR CHARITY

Pay for half your place cost & fundraise less for Charity (who pay half of your place cost)

10 Mile CHALLENGE

£25 Reg Fee & at least
£75 fundraising/sponsorship

10km CHALLENGE

£25 Reg Fee & at least
£75 fundraising/sponsorship

Option 3

OWN PLACE CHARITY
FUNDRAISING

Pay for your place & fundraise whatever you can for a Charity (with NO cost to them)

10 Mile CHALLENGE

£49 Fee paid online &
fundraise whatever you can

10km CHALLENGE

£49 Fee paid online &
fundraise whatever you can

Active Network logo

NOTE – Our registration system provider is Active Network – you’ll need to create an account, or log into an existing one as you register. All Reg Fees are paid online. A 3% Platform Booking Fee applies to all transactions.

OFFICIAL FUNDRAISING PARTNER

FAQs

You must be 18 or over (on the day of the challenge) if taking on a Full Challenge (~100km) or Three Quarter Challenge (~75km); 16+ and accompanied by an adult if taking on a Half Challenge (~50km ), 14+ and accompanied by an adult if taking on a Quarter Challenge (~25km) or Marathon); for a  Half Marathon aged 12+ and accompanied by an adult; and finally 8+ & accompanied by an adult for a 10km/mile Challenge.

Under 18s taking part must be signed up by someone over 18.

You’ll receive a ‘transaction receipt’ (via email) along with a Confirmation Email welcoming you, and detailing any next steps, timelines you need to be aware of, and how & where to find all the info / details you’ll need for your Challenge. (NOTEIf you don’t receive that e mail within 12 hours, please check your spam/junk mail folders)

You can expect to hear from your charity within 14 days. If for some reason you do not hear from them – please contact them directly, and also email us at  charity@actionchallenge.com & we will follow up with the charity for you.

We ensure that registered teams are assigned the same start wave (where distance/challenge option allows), and your team name will be printed onto your bib.  

There are no restrictions on our regular teams – you can be any mixture of charities / distances / funding types (i.e. Self Funding, Charity Sponsorship or Mixed Funding), and can have any number of members. (even 2).

Even if you are not fundraising for the same charity, you can still create a challenge team with us.

Whilst you are signing up and registering for your challenge – in the TEAM INFO section (towards the end of the registration questions), you will be asked if you would like to ‘Join a team’ or ‘Create a team’.

If selecting to create a team, you will be asked to create a Team Name and Password. Subsequent team members can then register and select to join your team, and will need to provide the team password in order to join it.

Yes – as long as you are fundraising for the same charity, you can create a team fundraising page on Just Giving (we recommend letting your charity know this is how you will be fundraising together). However, please be advised that the minimum fundraising targets remain per person (not per team), so you will need to reach the combined total fundraising amount on your page for your group. 

If you are entering on a Charity Sponsorship or Mixed Funding place then NO – you must select one prime charity for your fundraising. This is because your charity will be paying for a portion of your place on the event (out of the fundraising that you generate). If you wish to also fundraise for another charity, you can do so on your own terms but only as long as you reach the minimum fundraising target your first/prime charity.

If you join as ‘Own Place Charity Fundraising’ however, you have complete flexibility on who you fundraise for – with no targets or deadlines.

All sponsorship goes direct to the Charity via your online JustGiving page – WHICH YOU MUST SET UP.

At least 50% of the ‘sponsorship target’ should be with the Charity 3 weeks prior to the Challenge. At this time the Charity agrees to pay a Fee for your place to the Ultra Challenge 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 your charity.

The remaining 50%, and any extra, should be with your Charity by 4 weeks after the Challenge.

All charity sponsorship and mixed funding places close 4 weeks before each challenge, so that you have enough time to fundraise and reach your target. Self funding places close for online registration on the Tuesday before each challenge.

Visit the ‘HELP CENTRE’ on the Ultra Challenge Website:

HELP CENTRE >>

If you still need additional help or guidance – you can contact the Ultra Challenge Team at:

info@ultrachallenge.com

Tel: 0207 609 6695

 

Read the 2025 Terms & Conditions

18 Amazing Challenges

Over 200,000 adventurers have taken on an Ultra Challenge® so far, and the 18 unique events make up the UK’s biggest & best series of treks & trail runs – which have also raised £55+ million for charities. Whichever challenge you choose, you’ll get full support all the way 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 in 2025.

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
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