Caernarfon
Trail Running Calendar near Caernarfon 2026-2027
Explore the top trail runs near Caernarfon for 2026-2027! We've gathered 35 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2026
A guided 55km route on Anglesey taking in three of the island's highest tops, with over 2000 m ascent, checkpoint support and a wooden finishers medal.
A 16.1 km fell race around Penmaenmawr with about 594 m of ascent, based at Capelulo Village Hall. The route is partially marked and requires navigation; entry is online with a £12 fee.
A guided 10 km trail run from the Sychnant Pass summit featuring runnable terrain, regular stops and a steady group pace on an upland route.
December 2026
Pre Christmas social run and walk at Conwy Falls offering a leisurely run or walk of up to 2 hours with a cafe gathering afterwards.
January 2027
February 2027
A point-to-point half marathon across the Llŷn Peninsula from Cwt Tatws to Aberdaron on 28 February 2027, chip timed with aid stations and optional coach transfer and T-shirt.
April 2027
An 8.6 mile multi terrain race around Trawsfynydd Lake on mixed tarmac and trails with 175 m ascent, chip timed and marshalled. Proceeds support South Snowdonia Search and Rescue; open to athletes aged 17 and over.
May 2027
115 km multi-discipline race from Abersoch beach to Snowdon and back, featuring a sea swim, mountain ascent and return bike with a beach finish.
June 2027
A long-standing mountain race in Eryri, North Wales, tracing a bee-line route from the coast to the summit of Yr Wyddfa on Saturday 5 June 2027. Long and short courses cross rocky summits, technical ridges and grassy slopes.
A 51 mile mountain and trail race in Southern Snowdonia with 2,898 m ascent, six checkpoints, mandatory kit and a 20 hour cut-off.
July 2027
A 300 mile ultra along the Cambrian Way from Conwy, UK, with about 74,000 ft of ascent and up to 7.5 days to complete a nonstop route across central Wales.
Multi-distance trail running in Eryri from Llanberis, with 10K, half, marathon and 58 km ultra plus an event village, on-course support and bilingual services.
A 15.35 km mountain race on 17 July 2027 with 994 m of ascent; entrants must be over 18 and have mountain running experience.
Mountain running in Eryri's Ogwen Valley offering three distances, marked technical trails, on-course support and chip timing at Plas y Brenin, Capel Curig.