Gower Peninsula Ultra Challenge | Marathon 42K Loop
A classic distance from Penrice Castle on a loop featuring Oxwich Bay and its nature reserve, the stunning Wales Coast Path, picnic at Rhossili, the Gower Way then a celebration and medal!
- Sat 18 Jul 2026
06:45
Age 14 & over
£89
- 42 km multi terrain running + 900 m ascent
Event overview
The basecamp is in the grounds of the historic Penrice Castle, with weekend camping options and the 100km challenge is a figure-of-eight route made up of west and east loops which take in the best of the Peninsula, its history and its varied, unique landscape.
With 75km, 50km, Marathon, 25km and 10K challenge options, as well as a bar and entertainment at basecamp - this event will be the highlight of the season!
The Ultra Challenge Experience
This endurance event is for a wide range of fitness and ages. Choose your distance and do it at your pace. The support enables you to go further, whilst enjoying the great outdoors and camaraderie.
There are marquee rest stops, plenty of food and drink, medical and massage teams, and a fully signed route with GPS tracking to guide you. A big finish-line celebration awaits with an amazing sense of achievement, and once the aches subside, you’ll feel energised and up for more of life’s challenges!
This event is part of Gower Peninsula Ultra Challenge.
Event photos
Event video
- Average fitness
- Beginner-friendly
- Event village
- Teams
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 – there’s an Ultra Challenge® for you! Walk, Jog, or Run – as an Individual or a Team, for a charity of your choice or just for you.
On the Full and 1st Half challenges, there’s a new Ultra Trailblazerz® option for ‘rapid runners’, and an Ultra March® option for ‘hasty hikers’, plus a friendly ‘Solo Challenger’ start time to join up with others.
The Gower Peninsula Ultra Challenge® is fun, safe, and rewarding, with full support all the way, a fantastic figure-of-eight route, and weekend camping options at the basecamp, enabling you to push yourself further in some wonderful, rugged countryside.
Best support & hospitality
This Ultra Challenge® famously lays on the best support and hospitality available on any UK endurance-style event. This enables you to step up and confidently tackle an 'Ultra' distance, with the best chance of success - and to enjoy your challenge!
- Circular route
- Distance markers
- First aid
- Food stations
- Marshals
- Navigation not required
- Toilets
- Undulating
- Water stations
- Way markers
Overview
If a marathon is your classic distance – this is a great one! Setting out from Penrice Castle basecamp, where there are a range of camping options and hospitality. It heads out on a clockwise west loop down to Oxwich Bay and its nature reserve, joining the stunning Wales Coast Path and along to Rhossili for a picnic lunch. You'll then cut inland, head back east and join the elevated Gower Way, with a final push back down to the basecamp finish line at Penrice Castle.
Map

Included
- Snacks and drinks every 10-15km
- 25km | picnic lunch
- 50km | hot meal at basecamp
- Finish | glass of fizz, medal and t-shirt
- Accommodation
- Bag transfer
- Bar
- Cafe
- Camping
- Changing facilities
- Entertainment
- Paid parking
- Rural
- Secure bag storage
- Showers
- Camping
- Chip timing
- Drinks
- Event app
- Fizz at the finish
- GPS tracking
- Map
- Massage
- Medal
- Post-race meal
- Pre-event training sessions
- Snacks
- Training plan
- T-shirt
Before
- Challenge app
- Facebook forum
- Training guides
- Fundraising support
- Training walks and runs
- Video briefings
- Travel planning
- Parking
During
- Baggage transfers
- The start line
- Timing and GPS tracking
- Rest stops
- Food and drink
- Medical support
- Camping
Along the route
- Fully signed route
- Apps, maps and GPS
- Route safety experts
- Emergency response
- Trek masters
- 24 hour control room
After
- Finish line experience
- Finish times and certificate
- Shuttles and transfers
- Hot meal
- Medical care and follow up
- Deals on future challenges
Bookable extras
- Camping packages
- Parking
- Pre challenge transfers
- Post challenge transfers
- Extra meals
- Baggage services
High level of service from your staff, the detail and accuracy of your administration and general professionalism of the whole event. First class delivery
Everyone was incredibly friendly and helpful. They couldn't do enough for you. All the people helping made the challenge an amazing event.
Do it for charity
Looking to do this event for charity? Do it for one of the charities below or see the full list of charities on the Gower Peninsula Ultra Challenge charity places | Marathon 42K Loop page.
- Age 14 & over
- Entries open
- to 26/06/2026
- Charity places
- Enter online
- Event merch available
Under 18s need to be accompanied by an adult.
Entry fees
Entry fee
£89.00
Other races at event
- Sat 18 - Sun 19 Jul
- #1 of 8
06:45
Age 18 & over
£199
- 100 km multi terrain running + 2200 m ascent
- Sat 18 - Sun 19 Jul
- #2 of 8
06:45
Age 18 & over
£199
- 100 km multi terrain running + 2200 m ascent
- Sat 18 Jul
- #3 of 8
09:30
Age 18 & over
£169
- 75 km multi terrain running + 1550 m ascent
- Sat 18 Jul
- #4 of 8
06:45
Age 16 & over
£139
- 50 km multi terrain running + 1200 m ascent
- Sat 18 - Sun 19 Jul
- #5 of 8
11:00
Age 16 & over
£139
- 50 km multi terrain running + 1000 m ascent
- Sat 18 Jul
- #7 of 8
09:30
Age 14 & over
£89
- 25 km multi terrain running + 550 m ascent
- Sat 18 Jul
- #8 of 8
10:30
Age 8 & over
£49
- 10 km multi terrain running + 250 m ascent

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