About

XTERRA Snowdonia Trail Eryri Marathon, Half Marathon, Ultra Marathon & 10k.
The original Snowdonia Trail Marathon Eryri, starting and finishing in Wales' outdoor capital, Llanberis.

With four different distances available, the incredible routes explore the trails, gorgeous panoramic views and tough climbs that make Eryri (Snowdonia) National Park so popular with outdoor enthusiasts. Visiting Rhyd Ddu, Beddgelert, Nant Gwynant, Pen y Pass, and Yr Wyddfa (Snowdon), there surely can't be a more striking trail marathon route out there.

SPECTATING
Spectators are welcome at our events, to cheer on everyone taking part! We pride ourselves on an exciting and positive atmosphere at all of our events, and we would love you to come along to add to the warm Welsh welcome that our local communities offer.

All the race action can be enjoyed on the event field, next to the community centre in Llanberis.