About Snowdonia Trail Marathon Eryri
Experience the breathtaking beauty and rugged mountain trails of Eryri (Snowdonia) at one of the UK's most spectacular trail running events.
Starting and finishing in the picturesque village of Llanberis, in the heart of the Eryri National Park, the Snowdonia Trail Marathon Eryri offers an unforgettable adventure through some of Wales' most iconic landscapes.
With four distances to choose from, including the Trail 10K, Half Marathon, Marathon and Ultra Marathon, there's a challenge for experienced mountain runners and those taking their first steps into trail running.
The courses take runners through spectacular mountain scenery, ancient woodland, picturesque valleys and challenging trails, with the longer distances featuring an unforgettable ascent of Yr Wyddfa (Snowdon), the highest mountain in Wales and England.
Whether you're chasing a personal achievement, taking on your toughest challenge yet or simply looking to experience the incredible landscapes of North Wales on foot, this is trail running at its most inspiring.
Beyond the trails, the lively event village in Llanberis offers a fantastic atmosphere for runners, friends, families and spectators, with a warm Welsh welcome and plenty to explore in the surrounding area.
