Jones o Gymru Anglesey Trail Half Marathon & 10K 2026

The Jones o Gymru Anglesey Trail Half Marathon & 10K begins in Gwalchmai, near Holyhead on Anglesey, in early March. Participants select either the half marathon or the 10K. The route is undulating, suitable for early-season races and marathon preparation. The course offers runners clear views towards Eryri, also known as Snowdonia, and the Menai Straits. Participants travel from across the UK. First-time runners, charity fundraisers, and experienced athletes start together. The minimum age is 17.