Trail RunningHalf Marathon

Eryri 25k

17 May 2026
Llanberis, Wales, United Kingdom
Ultra Trail Snowdonia

Race details

Modality

Individual

Organizer

Ultra Trail Snowdonia

Distance

25 km

Elevation

+1,300 m

Terrain

Trail

Difficulty

Advanced

Course profile

Mountainous

Minimum age

18+

Certified

No

Circuit

UTMB World Series

Event description

The ERYRI 25K is a challenging trail running race starting from Llanberis, taking runners through the spectacular heart of the Snowdonia National Park. Featuring 1300m of elevation gain, the course offers technical terrain and breathtaking views of the Welsh peaks. It is an ideal opportunity to experience the essence of mountain running in one of the UK's most iconic landscapes.

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Sport

Trail Running

Distance

Half Marathon

Country

United Kingdom

Region

Wales