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RunThrough Snowdonia Sea2Sky

Barmouth, United Kingdom • 5 Sep 2026

Event overview

RunThrough Snowdonia Sea2Sky takes place on Saturday 5 September 2026 in Barmouth, Wales. The event is organised by RunThrough and is based at Bath House, The Quay, Barmouth LL42 1HB. It is a trail running event that visits coastal and mountain terrain, including a route that goes from Barmouth beach to the summit of Cadair Idris and back.

Distances and entry

  • 54 km
  • 25 km
  • 12 km

Entry fees are listed for the distances as follows: 12k £40, 25k £55, 54k £95.

Course and event services

The route includes coastal viewpoints, forest tracks, rocky paths, and open mountain trails. The organiser provides waymarking with distance flags at each kilometre and marshals along the course. Entries include a themed medal, chip-timed results, free race photos, and post-race refreshments and goodies. An event village with food and drink options is listed as part of the event services. The organiser notes a focus on sustainability and offers event merchandise via a partner provider. Visit the organization's website for the most recent information.

United Kingdom Wales Barmouth

Race information

Registration
54 km
54k
25 km
25k
12 km
12k
Visit the organization's website for the most recent information.
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