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Volunteer at Ultra-Trail Snowdonia by UTMB

Celebrating its seventh edition in 2025, Ultra-Trail Snowdonia by UTMB returns to North Wales in May.

Taking place on Friday 16, Saturday 17 and Sunday 18 May 2025, UTS is the UK’s answer to the big mountain ultra-marathons found elsewhere in Europe and is part of the UTMB World Series. What makes UTS so unique is its mountainous trails of four distances on offer, ranging from 25km to 100 miles. All race routes start in Llanberis and provide the ultimate grand-tour of the mountains of Eryri National Park, taking in the most notable peaks and trails of the area.  



The team behind UTS are aiming to recruit 300 volunteers to help deliver this global showpiece event and provide a unique experience for the 3,000 participants.