Welcome to the
XTERRA Snowdonia
Trail Marathon Eryri,
a stunning Trail
Marathon, Ultra
Marathon, Half
Marathon and 10k,
starting and finishing
in Wales' outdoor
capital, Llanberis.
Sat 11th July 2026
Races From: 6:30am
Location:
High St,
Llanberis,
Caernarfon,
LL55 4EU
