Snowdonia Sea2Sky 25K
- When
- Sat, Sep 5, 2026, 12:00 AM
- Where
- Barmouth, GB
- Distances
- Marathon · Ultra Marathon
- Terrain
- TRAIL
- Price
- 55–95 GBP
- Elevation gain
- 1650 m
- Typical weather
- Mild
- Organizer
- RunThrough
About
Snowdonia Sea2Sky 25K is a scenic trail race that leads runners from Barmouth, Wales along coastal paths and up into the foothills of Snowdonia National Park, combining sea views with forest tracks and rolling terrain. The next edition of this 25 km challenge takes place on Saturday 5 September 2026, with the start and finish based near the quay in Barmouth.