RunThrough Snowdonia Sea2Sky

SEP
5
2026
Trail running event in Snowdonia from Barmouth to Cadair Idris with multiple marked routes, chip timing, photos and an event village with refreshments.
Sat 5 Sep 2026
53 kilometers 25 kilometers 12 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

RunThrough Snowdonia Sea2Sky overview

RunThrough Snowdonia Sea2Sky is a trail running event in the Eryri / Snowdonia area that links the Barmouth coast with mountain terrain including the ascent to Cadair Idris. The event offers multiple route lengths and uses a mix of coastal viewpoints, forest tracks, rocky paths and open mountain trails.

Course management includes trail flags and tags, A5 arrows and signage, and marshals at key junctions. Organisers provide GPX files so participants can check their position and self-navigate if required. The event notes that trail routes can be affected by weather, walkers and wildlife, and advises reliance on provided waymarking and navigation aids.

Entries include a themed medal, chip-timed results, free race photos and post-race refreshments listed as part of the event village provision. Marshals and on-site services are described as available to support participants and manage the finish area. The organiser references sustainability work and offers a discounted event t-shirt as an optional purchase during entry checkout.

Location details list Bath House, The Quay, Barmouth LL42 1HB, United Kingdom. The event is presented in partnership with Samsung and advertises course marking, timing and participant services across the available distances. Visit the organization's website for the most recent information.

53 km
53k
25 km
25k
12 km
12k
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