Snowdonia Trail Marathon Eryri
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Snowdonia Trail Marathon Eryri
The Snowdonia Trail Marathon Eryri takes place in Eryri (Snowdonia) National Park with routes that begin and finish in the town of Llanberis. The event includes trail running over rugged terrain, steep climbs, forest tracks and mountain scenery, and routes pass through Rhyd Ddu, Beddgelert, Nant Gwynant and Pen y Pass. Selected distances include sections on the slopes of Yr Wyddfa (Snowdon). The event dates are 10 July to 11 July 2027.
Distances offered:
- 10K - 9.8 km
- Half Marathon - 13.2 miles
- Marathon - 28.9 miles
- Ultra Marathon - 58 km
The Marathon and Ultra Marathon are ITRA and UTMB indexed. The event village provides music, commentary, shopping, food, kit demonstrations and toilets, and the event uses chip timing with live online results. On-course support includes marshals, signage, energy stations and support vehicles. Family facilities include family finishes and a children’s 500 m fun run called the Jones o Gymru Dolbadarn Dash; entry is a suggested £3 donation with proceeds to the Llanberis Mountain Rescue Team. Finishers receive event mementos designed to reflect local locations and history. The event operates bilingually with signs, registration and commentary available in English and Welsh. Visit the organization's website for the most recent information.
