Llanberis 2025 Marathons

The XTERRA Snowdonia Trail Marathon Eryri challenges runners with a 27-mile course featuring a 1,685-meter elevation gain through the breathtaking landscapes of Eryri National Park, culminating in an ascent of Yr Wyddfa (Snowdon), Wales' highest peak. As part of the XTERRA Trail Run World Series and a UTMB-indexed event, it offers an unforgettable experience with panoramic views and a vibrant event village, making it a must for trail running enthusiasts.

Marathon Eryri offers a thrilling 26.2-mile adventure around Wales' Snowdon, featuring challenging climbs like the 270-meter ascent at Waunfawr and breathtaking views of Snowdonia National Park. Celebrated for its stunning scenery and community spirit, this race is a favorite among runners seeking both a formidable challenge and the warm support of local spectators.