supporters stretching before taking on the Cotswold challenge

Gower Peninsula Challenge

Date: 19th July 2025 - 20th July 2025
Registration fee: £10-£199
Fundraising target: £70-£575
- Running
- Ultra challenge
- Wales
- Walking

A brand-new Ultra Challenge for 2025, set on the stunning Gower Peninsula – the UK’s first Area of Outstanding Natural Beauty, famous for its golden beaches, limestone cliffs, wild moors, ridges and woodlands.

You’ll start from basecamp in the grounds of the historic Penrice Castle, with weekend camping options. The 100km full challenge will take you on a figure-of-eight route, with west and east loops taking in the best of the Gower, its history, and its varied and unique landscape.

With 50km, 42km marathon, 25km, and 10km challenge options also available, and a bar and entertainment at basecamp, this event will be the highlight of your season!

You may have to dig deep at times – but you’ll meet new friends along the way, and the journey will be unforgettable! And as you cross the finish line, you’ll get a warm welcome from the cheer squad, a glass of fizz, a t-shirt, and a special 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.

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Distance options

Full Challenge – 100km
Half Challenge – 50km
Marathon – 42km
Quarter Challenge – 25km
10km Challenge – 10km

When joining the team you’ll receive:

a branded Dementia UK technical sports top
training plans
support from our Fundraising Team
fundraising advice, hints and tips in the build-up to the event
a range of Dementia UK fundraising materials (collection buckets, posters, balloons etc) to make any events you hold look amazing

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:
- 100km Challenge: registration fee £25, fundraising target £575
- 50km Challenge: registration fee £20, fundraising target £375
- 42km Challenge: registration fee £20, fundraising target £375
- 25km Challenge: registration fee £15, fundraising target £275
- 10km Challenge: registration fee £10, fundraising target £100
Mixed funding: pay half the cost of your event place yourself, fundraise a bit less and we’ll cover the balance of your place in the event.
- 100km Challenge: registration fee £110, fundraising target £330
- 50km Challenge: registration fee £75, fundraising target £225
- 42km Challenge: registration fee £75, fundraising target £225
- 25km Challenge: registration fee £50, fundraising target £150
- 10km Challenge: registration fee £22.50, fundraising target £70
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.
- 100km Challenge: registration fee £199, no minimum fundraising target
- 50km Challenge: registration fee £139, no minimum fundraising target
- 42km Challenge: registration fee £139, no minimum fundraising target
- 25km Challenge: registration fee £89, no minimum fundraising target
- 10km Challenge: registration fee £39, no minimum fundraising target