Royal Parks Half Marathon
Join Dementia UK and tackle the Royal Parks Half Marathon, run past London’s iconic and historical landmarks for families facing dementia.
Great challenges need great settings – and few can beat the Isle of Wight’s coastal path. Two thousand adventurers of all experience levels will walk, jog or run the Isle of Wight Challenge in 2025, going all out to push themselves further. You can pick your distance – with 10-mile, quarter and half marathon, and the full 106km marathon routes to choose from, there’s a challenge for everyone!
The event takes place along the island’s spectacular southern cliffs, past the iconic Needles and up to historic Cowes at the halfway point. Full Isle of Wight challengers will then head for the cliffs of Ventnor before returning to a warm welcome at our base camp in Chale after an epic 106km journey.
Your entry includes free food and drink at regular rest stops along a fully signed route, plus support from medics, marshals and massage therapists. As you cross the finish line, you’ll receive a glass of fizz, a finisher’s t-shirt, and a medal to celebrate your achievement.
As Dementia UK is an official partner of this event, you will receive a 50% discount on the ‘full sponsorship’ registration fee when signing up to support families affected by dementia.
Head to the Dementia UK Ultra Challenge page to find out full details of prices and to sign up.
Full sponsorship – you pay a small registration fee and we’ll cover the remaining cost of your event place as long as you hit your fundraising goal!
As we are an official charity partner, you will receive a 50% discount on the original registration fee. Prices after the charity partner discount are:
For charity sponsorship places, to secure your entry, you’ll need to raise 50% of your full fundraising target no later than three weeks before your challenge. You’ll get lots of support and reminders from us to help you achieve this! The remaining sponsorship can be sent to us in time for your event (or no later than four weeks after your challenge).
Mixed funding –pay half the cost of your event place yourself, fundraise a bit less and we’ll cover the balance of your registration fee.
For charity sponsorship places, to secure your entry, you’ll need to raise 50% of your full fundraising target no later than three weeks before your challenge. You’ll get lots of support and reminders from us to help you achieve this! The remaining sponsorship can be sent to us in time for your event (or no later than four weeks after your challenge).
Own place fundraising – you pay the full cost of your event place yourself, then fundraise as much as you can – there’s no set target or deadline, and no cost at all to Dementia UK.
10-mile: registration fee £39, no minimum fundraising target
For any specific questions about the event, please get in touch with the Ultra Challenge Team at info@actionchallenge.com
The Ultra Challenge website has full details of the event. You can get in touch with the Ultra Challenge team for specific event questions at: info@actionchallenge.com
Dementia UK is proud to be an official Partner of the 2025 Ultra Challenge Series.
Join Dementia UK and tackle the Royal Parks Half Marathon, run past London’s iconic and historical landmarks for families facing dementia.
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