Gwynedd
Trail Running Calendar near Gwynedd 2026-2027
Explore the top trail runs near Gwynedd for 2026-2027! We've gathered 43 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2027
Trail Half Marathon and 10K through Newborough Forest and Traeth Llanddwyn on 7 November 2027, with chip timing and an event village.
A 60 km winter loop on the Llŷn Peninsula following the Mariner’s Trail with individual and four person relay options, checkpoint support and a finisher medal.
July 2028
A 47 mile ultra from Barmouth to Llanidloes largely on National Cycle Route 8. It is Day 3 of the six day MTC CYMRUN, has a limited field and a minimum pace requirement, and includes tracking and a finisher medal.