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Scott Snowdonia Trail Marathon

location_on
Llanberis, Wales, United Kingdom

calendar_today 12 Jul, 2026

language Official Website

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About the Event

Conquer the legendary trails of Wales's most iconic national park in a true mountain running festival. The Snowdonia Trail Marathon Eryri returns on 11-12 July 2026, offering four epic distances—a grueling 57km Ultra, a classic Marathon, a scenic Half Marathon, and a 10K—all starting from the outdoor capital of Llanberis. This premier event carves a breathtaking route through the very heart of Eryri (Snowdonia), passing historic villages like Beddgelert, traversing Nant Gwynant, and offering staggering views of Yr Wyddfa (Snowdon) itself. As an ITRA and UTMB-indexed race, it's a serious challenge for seasoned trail runners, yet its vibrant event village and family-friendly atmosphere welcome everyone. Lace up for an unforgettable journey across the UK's most spectacular mountain landscape.

Races Offered

10 km

Jul 12, 2026

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Distance — 10K

terrain

Type — —

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97 days remaining

Full Marathon

Jul 12, 2026

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Distance — 43.4K

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timer

97 days remaining

Half Marathon

Jul 12, 2026

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Distance — 21.1K

terrain

Type — —

timer

97 days remaining

Ultra Marathon

Jul 12, 2026

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Distance — 57K

terrain

Type — —

timer

97 days remaining

Weather Overview

These values represent the 3-year monthly averages for July in Llanberis.

Temp (°C)
Feels Like (°C)
thermostat 12.5° / 17.5°
wb_sunny 10.1° / 15.2°
Wind (km/h)
Humidity (%)
air 15.4 /
water_drop 82.9%

About Llanberis

Learn more about the host city, Llanberis.

Scenic view of

Llanberis is in North Wales, 7 miles away from Caernarfon.

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Hotels & Places to Stay

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