Winter Celtic Trail Races

Aberdare, United Kingdom • 13 Dec 2025

The Winter Celtic Trail Races, taking place in December 2025, offer a thrilling trail running experience across three distances: a 50k ultra, a full marathon, and a half marathon. Set in the stunning landscapes of Afan Forest and the Rhigos mountain range, participants will navigate ancient Celtic tracks, enjoy breathtaking views of the Brecon Beacons, and finish at the vibrant Dare Valley Country Park. The routes feature a mix of sharp climbs, fast descents, and river crossings, ensuring a challenging yet rewarding adventure. All courses are fully marked, with checkpoints providing refreshments along the way. Visit the organization's website for the most recent information.

Race information

34 mi
5850 m+
Celtic Ultra
26 mi
4200 m+
Celtic Trail Marathon
13 mi
2200 m+
Celtic Trail Half Marathon
Visit the organization's website for the most recent information.
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