The Great Hertfordshire AONB Marathon

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Walk, jog, or run, in one of the most scenic events in Hertfordshire.


Situated on the “North Island” of the Chiltern hills and valleys, this is a must-do event to tick off your bucket list, with some of the most breathtaking views Hertfordshire has to offer.

The route for all the distances is multi-terrain. One thing is for sure, once you reach the top of a hill climb, you’ll be greeted by breathtaking panoramic views, overlooking miles of countryside.

Online registration NOW CLOSED


Thank you to the hundreds of runners, walkers and ramblers who have signed up to take part in the AONB Marathon, half marathon and 10k. We look forward to seeing on Sunday 2nd June! If you have any questions regarding the event, please contact Jake on or call the fundraising team on 01462 679540

Registration times:

Saturday 1st June - 9am - 11am - Nuffield Gym, Letchworth
Sunday 2nd June - 8am - 8.45am - Hester Ballroom, Offley Place

Start times:

9.00am - Full Marathon
9.10am - Half Marathon
9.20am - 10km

You can still join us on the day!

Sign up on the day and take part in the FIRST Great Hertfordshire AONB Marathon, half marathon and 10k. 

Choose your distance:

  • Full Marathon
  • Half Marathon
  • 10km

On the day entry fee:

Marathon (18+) - £40
Half Marathon (16+) - £30
10km (11+) - £20
VIP Marathon (18+) - £100

On the day registration includes a special medal and post-race recovery snacks! Please note, event t-shirts have now sold out and aren't included in the ticket price for on the day purchases.

VIP Entries:

Get extra special priority treatment for £100pp. Including access to your very own area to relax post-race, a bottle of bubbles and canapes, a free massage, as well as a medal, T-shirt and goody bag to take away!

Free course for kiddies

Bring along your little ones to enjoy a fun run consisting of 1 lap around the field at Offley Place, started by none other than Harry the Hospice Bear. 

Sponsorships & Fundraising:

Now for the good bit…by raising money through sponsorships, you can earn rewards!

The Hospice relies on the kindness and goodwill of people to help raise vital funds to keep providing free palliative care to those in need.

Sponsorship rewards include:

  • If you raise £400, you qualify for the VIP entry ticket including VIP treatment*
  • If you raise £500, you qualify for the VIP entry ticket including VIP treatment AND free entry to the Santa Run in December*
  • If you raise £600, you qualify for the VIP entry ticket including VIP treatment AND free entry to the Santa Run in December. You are also eligible for your race entry fee to be refunded back to you as a thank you from us (If you choose to do so)*

Terms and Conditions apply

Interested in being a corporate sponsor for the event? We have some fantastic packages on offer, contact for more information.

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