Snowdonia Half Marathon

Course

Scenic but tough half marathon starting and finishing at Gwydir Park in Llanrwst, in Eryri/Snowdonia. The route climbs to Llyn Geirionydd, crosses to Llyn Crafnant, drops through Trefriw and then takes on Forest Hill, a 1 in 7 climb at around mile 11, before returning past Gwydyr Castle. Mountain trail with road sections.

Key dates

• !
  Registration
  Open now
• ★
  Race day
  Sun 9 May 2027

About

The Snowdonia Half Marathon offers runners a challenging and scenic route through the stunning landscapes of Wales. Participants will experience breathtaking mountain views and rugged terrain that makes this event unique. The course winds through one of the most beautiful national parks in the United Kingdom, providing an unforgettable running experience.

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