Celtic Trail Races

DEC
12
2026
Winter trail races around Afan Forest and the Rhigos with fully marked 34 miles ultra, 26 miles marathon and 13 miles half finishing at Dare Valley Country Park.
Sat 12 Dec 2026
34 miles 26 miles 13 miles

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Celtic Trail Races

The Celtic Trail Races are winter trail events based at Dare Valley Country Park near Aberdare, Rhondda Cynon Taff. Routes run through Afan Forest, the Rhigos mountain range and the Coed Morgannwg Way, finishing at Dare Valley Country Park. Terrain includes sharp climbs, long flowing descents, river crossings and remote single track across trails described as runnable and steeped in local history.

Race distances

  • Celtic Ultra : 34 miles, 5,850 ft ascent, circular from Dare Valley Park
  • Celtic Trail Marathon : 26 miles, 4,200 ft ascent, circular from Dare Valley Park
  • Celtic Trail Half Marathon : 13 miles, 2,200 ft ascent, linear from Resolven to Dare Valley Park

Routes are fully marked with arrows, flags and tape and maps are provided. An interactive map and GPX files are available for download. Checkpoints are manned and number seven for the Ultra, six for the Marathon and three for the Half; they offer water, fruit and packaged snacks.

Practical details include separate car parking locations depending on distance and optional coach transport for the linear half marathon at an additional cost. Coach places may be limited and a small 10 litre finish bag can be transported for coach users. A compulsory kit list must be carried by all competitors. Event entry includes a finishers medal, free photographs, on-course safety and first aid provision, and refreshments at checkpoints. Visit the organization's website for the most recent information.

34 mi
Celtic Ultra
26 mi
Celtic Trail Marathon
13 mi
Celtic Trail Half Marathon

Events nearby

A 12 hour Backyard Ultra on a 4.2 mile loop near Crickhowell in the Black Mountains. The final lap is run in reverse as a sprint to decide male and female winners; medals are awarded for 32 miles or more.
A fell running race in Caerphilly on 26 September 2026 featuring a 9.5 km course with 336 m of climb, partially marked and with a short walk from parking to the start.
Trail race at Margam Country Park offering 5 km and 10 km routes through woodland with castle views. The event features chip timing, water stations, a finisher's medal and parking included with entry.
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