Snowdonia Sea2Sky
- When
- Sat, Sep 6, 2025, 4:00 AM
- Where
- Barmouth, GB
- Distances
- Marathon · Ultra Marathon
- Terrain
- TRAIL
- Price
- 38–85 GBP
- Elevation gain
- 1632 m
- Typical weather
- Warm
- Organizer
- RunThrough
About
The Snowdonia Sea2Sky 53km ultra-marathon features a demanding 1,632-meter elevation gain, guiding runners from the golden sands of Barmouth Beach to the rugged summit of Cadair Idris and back. Organized by RunThrough Trails, this race on September 6, 2025, offers an unparalleled trail running experience through some of Wales’ most breathtaking terrains.