

About the event
Commencing at Resolven, the Celtic Trail Half Marathon spans 13 miles, concluding at Dare Valley Country Park. The route follows parts of the Coed Morgannwg Way, leading runners through ancient tracks of Celtic origin, woodlands, and moorlands, with an elevation gain of 2,200 feet. Participants will enjoy views across the Brecon Beacons and South Wales Coast, experiencing a mix of sharp climbs and fast, runnable sections. Organized by Run Walk Crawl, this half marathon on December 13, 2025, is perfect for those seeking a challenging yet accessible trail race.
Date:
Sat
Dec 13
2025
Location:
Distance:
Elevation profile:
Hilly
Website:
LinkElevation gain:
Number of participants:
Find the best training plan for your goals and the distance you’re planning to run:
Stories from Runnas
Take your running to the next level
The Celtic Trail Half Marathon is a 13-mile linear race starting at Resolven and finishing at Dare Valley Country Park, following sections of the Coed Morgannwg Way. With 2,200 feet of elevation gain, this event on December 13, 2025, offers runners a taste of South Wales' rugged trails.
If you are an official race organiser with any questions about this page, please get in touch: races@runna.com
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