Immerse yourself in one of Britain's most spectacular and demanding trail races within Eryri (Snowdonia) National Park, located in North Wales. Competitors can select from four challenging distances: Ultra Marathon, Marathon, Half Marathon, or 10k, all starting and finishing in the lively town of Llanberis. The courses traverse some of Britain's most awe-inspiring landscapes, featuring rugged mountain trails, dense forests, and steep ascents. Key landmarks along the route include Rhyd Ddu, Beddgelert, Nant Gwynant, Pen y Pass, culminating at the summit of Yr Wyddfa (Snowdon), Wales' highest peak. This event offers a unique blend of physical challenge and natural beauty, perfect for trail runners seeking an unforgettable experience. Runners will encounter diverse terrain that tests endurance and resilience, with panoramic views offering a rewarding backdrop to every step taken along the route. The race is not just about reaching the finish line but also about enjoying the journey through some of Wales' most pristine wilderness areas.
Races Offered
10K
Jul 10, 2027
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Distance —
10K
terrain
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08:00
Ultra Marathon
Jul 11, 2027
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57K
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Running
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00:00
Marathon
Jul 11, 2027
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43.9K
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07:30
Half Marathon
Jul 11, 2027
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20.8K
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Running
timer
08:00
Weather History
These values represent the 3-year monthly averages for July in Gwynedd.
