RunThrough Snowdonia Sea2Sky

Barmouth, United Kingdom • 6 Sep 2025

The RunThrough Snowdonia Sea2Sky Trail Races, held in September 2025 at Barmouth, UK, offer two challenging distances: 25k and 53k. Set in the stunning landscapes of Snowdonia, this event features exhilarating trail routes with breathtaking views. Participants benefit from a fully marshalled course, water stations, chip-timed results, and post-race snacks. Each finisher receives a bespoke medal, and free event photography captures the experience. The race atmosphere promises a rewarding challenge for trail runners seeking to explore the natural beauty of Snowdonia while competing in a professionally organized event. Visit the organization's website for the most recent information.

Race information

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