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RunThrough Snowdonia Sea2Sky

Barmouth, United Kingdom • 6 Sep 2025

RunThrough Snowdonia Sea2Sky 53k & 25k Trail Races, a brand-new RunThrough event set in Snowdonia, takes place on Saturday, 6 September 2025 in Barmouth. Runners can choose between 25k and 53k trail distances, designed to challenge participants on scenic routes with amazing views. The course is marshalled, with water stations, and results are chip-timed.

Finishing athletes receive a bespoke finisher’s medal, with post-race snacks and free event photography. The event is held at Bath House, The Quay, Barmouth LL42 1HB, UK, and emphasizes atmosphere, a challenging yet rewarding trail experience, and a memorable finish for all participants. Early Bird and group-booking options are available. Visit the organization's website for the most recent information.

United Kingdom Wales Barmouth

Race information

Registration
UTMB 20K UTMB 50K
53 km
53k
25 km
25k
Visit the organization's website for the most recent information.
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