Chiltern 50
Ultra Challenge®

Sat 26 SEPT 2026

JOIN THE Team!

Join Aquarian Cladding and support Down Syndrome UK with a superb 25 km looped challenge through some of the Chilterns’ finest countryside. Expect historic trails, rolling hills, nature reserves, and fantastic views throughout. From our Henley basecamp, enjoy a Saturday night celebration meal & bar, plus extensive on-site camping and parking. The route offers real variety, wonderful scenery, and is easily accessible from London.

You’ll receive full support and hospitality along the way to finish off the Summer in style. Join the Chiltern Ultra Challenge® today!

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. Most will walk – but jog or run if you want to! The Chiltern 50 Ultra Challenge is fun, safe, & rewarding – with full support all the way, enabling you to push yourself further in wonderful scenery, and enjoy a great weekend away.

JOIN THE TEAM!

Follow the stepS below to sign up, set up your fundraising page and book your optional extras

1. REGISTRATION & FEES

  • Choose your distance and click sign up.
  • Registration Fees are covered by Aquarian Cladding.

2. FUNDRAISING

  • On Charity Sponsorship your charity covers the majority of your place.
  • 50% of your fundraising target must be raised by the deadline below.
  • Set up your JustGiving page by clicking the button below.

3. BOOKABLE EXTRAS

  • In the relevant section below you can view the extras available for the event.
  • Click the ‘Book Extras’ button to find the extras form.
  • You can pay at checkout and any discounts will be applied at checkout

1. Registration & Fees

REGISTRATION DEADLINE – 1ST SEPTEMBER ’26 AT 12:00PM

SIGN UP NOW

FULL SPONSORSHIP
FOR CHARITY

Aquarian Cladding pay a small Registration Fee
& Fundraise for your Down Syndrome UK (who then pay for your place)

25km CHALLENGE

£30 Reg Fee & at least
£275 fundraising/sponsorship

2. Fundraising

You are taking on the Chiltern 50 Ultra Challenge in support of Down Syndrome UK. Use the link below to visit/create your Fundraising page. Make sure you direct any donations you receive to this page!

50% of your personal fundraising target must be raised by the registration deadline stated above – 1st September 2026

3. Bookable Extras

We do have a range of additional 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. 

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. This will provide details regarding 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 will receive your Start-time email 4 weeks before the challenge takes place. 

You will receive your e-ticket email between 10 and 14 days before the challenge takes place.

(NOTEIf you haven’t received your start-time/e-ticket email within 3 weeks/7 days of the challenge, please check your spam/junk mail folders and let your designated event coordinator know)

If your team are doing Option 2 or 3, you can expect to hear from your charity within 14 days. If 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.

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. 

Follow the link in the fundraising section on this page. Alternatively, follow the link in the confirmation email you receive after your register.

Individual page: When you follow the link, it will have already pre-selected your challenge and your charity. All you need to do is enter your personal details and begin fundraising.

Team page: First, complete the same as above. Once you have created your own page, then link it to your teams Group Page.

Only Applicable to Option 2 & 3

All sponsorship goes direct to the Charity via your individual/group JustGiving page.

At least 50% of the ‘sponsorship target’ MUST be with the Charity 3 weeks prior to the Challenge. At this time the Charity agrees to pay the fee for your place to Ultra Challenge (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.

Speak to your charity directly – they will be able to offer you support and help to reach your fundraising target. Only 50% of the target has to be reached by the registration deadline. You have time after the challenge to keep on fundraising.

If you don’t reach 50% of the target, the charity may decline to pay for some team places. If the charity don’t have the minimum amount fundraised, they risk making a loss on any places they pay for. It’s in their hands!

If this happens, your team will have the option to cover the difference or switch to a different funding option. We will be in touch with you with alternative options.

Please refer to the registration deadline provided on this page, pasted red in the ‘Getting Started’ section. 

As a general rule, the registration deadline for corporate teams will be 25 days before the event takes place. Our advice would be to sign up as soon as possible!

CANCEL YOUR PLACE BEFORE THE REGISTRATION DEADLINE.

If you have already signed up, but then you need to cancel your place – get in touch with your team coordinator immediately. We also recommend getting in touch with us at – corporate@ultrachallenge.com – let us know your team name, event and distance. We can assist you in cancelling your place.

If you wish to cancel your place, but the deadline has passed, you/your company will not receive a refund.

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

The Chiltern 50 Ultra Challenge is part of the Series of 21 events around the UK, which, in 2026, will see 40,000 adventures take on a challenge as a walk, jog, or run. The Series will raise over £12 million for its charity partners.

Read the 2025 Terms & Conditions

25 km & 500 m

  • Start: Henley Showground
  • Start times: 08:30am – 09:30am
  • Finish: Henley Showground
  • Finish times: Runners 2 – 3 hrs, Joggers 3 – 5 hrs, Walkers 4 – 7 hrs

Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more. 

  • 12 km – snacks & drinks
  • 25 km – hot meal
  • Finish – glass of fizz, medal & t-shirt

There’s a full range of optional parking & pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and to provide flexible options for your planning. These include:

  • Parking at Henley (basecamp) & Lewknor
  • Shuttles from Henley station to the Start.
  • See ‘Bookable Extras’ page for full details.

Henley – Fri  &/or Sat

  • Camp overnight at our basecamp
  • Pitch only or inclusive package options
  • Hot showers, refreshments, rest areas & more
  • Friday evening meal & breakfasts
  • Visit ‘Bookable Extras’ for full details 

Henley 25 km Loop

Henley to Henley

26 Sept 2026

Take on our 25 km looped route starting & finishing at our Henley base camp taking in the best of the scenery, it’s easy to join & leave with bookable parking & overnight camping options.

OPTIONAL EXTRAS

Henley (basecamp)– MAIN START/FINISH VENUE

Friday night before your challenge. Suits ALL who are starting on Saturday morning

Saturday night is bookable for all wanting to stay the night post finish.

ALL-INCLUSIVE PACKAGES OR ‘PITCH ONLY’ OPTION (inc Camper Vans) ARE AVAILABLE

Parking for your vehicle is available at :

  • The Major Henley Start / Finish Venue
  • Supporter Parking Pass – so friends / family can park at Henley (basecamp) & Lewknor.

Shuttle busses to help with your logistics:

  • Transfer to the main Henley start venue from Henley train station.

After your challenge:

  • Transfer from your finish to Henley train station

Friday Night Dinner – available to book for anyone staying at Henley (basecamp) on Friday night.

Saturday Morning Breakfast – available to participants beginning their challenge on Saturday morning at Henley. Breakfast the following morning is included in the inclusive camping packages, but not in the pitch only & will need to be booked separately.

Sunday Morning Breakfast – breakfast the following morning is included in the inclusive camping packages, but not in the pitch only & will need to be booked separately.

Chiltern 10K Meal – If  you have taken part in the Chiltern 10k there is an option to book a hot meal post challenge.

NO NEED TO PRE BOOK – AND IS AVAILABLE ON THE DAY AT YOUR START (Pay cash or Card)

  • Store your bag at Henley (basecamp)
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