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Mountainous Trail runs in North Wales

Find mountainous trail runs in North Wales in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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A breathtaking mountain challenge through Snowdonia’s rugged heart — climb steep ridges, conquer iconic peaks and soak up awe-inspiring views across lakes, valleys and the dramatic Ogwen range.
  • Sun 12 Apr 2026
  • £37.99-£79.99
Betws-y-Coed, Clwyd, UK

Ogwen | Yr Helgi Du

A breathtaking mountain challenge through Snowdonia’s rugged heart — climb steep ridges, conquer iconic peaks and soak up awe-inspiring views across lakes, valleys and the dramatic Ogwen range.

  • Trees not tees
  • Beginner-friendly
  • Music
  • Event village
  • Mountains
  • Public transport links
  • Age 17 & over
  • Trail run 3
  • Sat 11 - Sun 12 Jul 2026
Caernarfon, Gwynedd, UK

Snowdonia Trail Marathon Eryri Events

  • 10K run
  • Half marathon
  • Marathon
  • Ultra run 2

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