Trail Running calendar near Caernarfon 2026-2027

Tower to Castle Ultra 30 covers 30.9 miles from Blackpool Tower to Lancaster Castle with a ferry crossing at Fleetwood, way marked sections and compulsory checkpoints. Pre registration is required and entries close 20 September 2026.

A community fell race in the Ceiriog Valley on 26 September 2026, covering 11.6 km with 425 m ascent. Entry on the day; refreshments, showers and changing facilities are provided at Canolfan Ceiriog Centre.

The Yr Wyddfa Sea to Summit will take place in Caernarfon on Saturday 26 September 2026. You can run between 21 and 47 kilometers.

Trail Half Marathon and 10K through Delamere Forest on marked, technical woodland trails with chip timing, aid stations and a canicross option, plus eco-friendly measures and on-site race HQ at the visitor centre.

Trail running in Blackpool on a 10K loop with longer race options, views of Marton Mere and Blackpool Zoo, drink stations and bespoke finisher medals.

Breidden Hills is an 11.5 km fell race around Criggion, Shropshire with 790 m of ascent. The course is partially marked so navigational skills and kit checks are required, entrants must be over 18 and entry is £8.

Women only night trail in County Wicklow on 2 October 2026. The fully marked 7.00 km route follows the Sugarloaf Way, requires a head torch and trail runners, and entry fees will be donated to Bray Women's Refuge.

The Backyard Ultra - Isle of Man will take place in Saint John's on Friday 2 October 2026. You can run 7 kilometers.

An uphill only 10 km from Ruthin to the Jubilee Tower on Moel Famau, featuring mixed terrain and a summit finish above 550 m; transport back to town can be purchased on site.

A trail event at Cuerden Valley Park on Friday 9 October 2026 where runners complete repeated 5k laps within a six hour limit. Finishers receive an official time and a bespoke medal.

A 32 mile trail through the Cambrian Mountains from Camp Plas near Dolanog, capped at 100 runners and fully marked with checkpoints and a 14 hour cut off. The weekend includes on-site camping, catering, live music and lakeside activities.

A trail half marathon on official pathways around Rivington, starting and finishing at Rivington and Blackrod High School on 10 October 2026. Organised by Chorley Women FC, the race requires prior half marathon experience.

A looped 10 km trail in Howth, County Dublin, running over grassy tracks, woodland paths and sealed roads with two ascents to the Ben of Howth and views across Dublin Bay. Entry restricted to those aged 16 and above.

The Twin Peaks Race in Aberystwyth challenges runners with ascents of both Pen Dinas and Constitution Hill on an 11.7 km route. A shorter junior race on the promenade is also available. The event features varied terrain and finishes with a..

A canicross event at Pennington Flash Country Park on 11 October 2026 offering short and long route options for runners with dogs, marked trails, marshals, parking, a café and toilets.

Trail races at Loggerheads Copuntry Park with a 6km loop, a 12km two-lap option and a 6km Canicross. Courses are marked and marshalled and entry fees range from £19 to £22.

An untimed 5k and 10k mud and obstacle run at Lyons Lane Motocross LTD in Shrewsbury, featuring brook crossings, hill climbs, a mud crawl and a water slide finish; specific age and supervision rules apply for children.

Cadair X is a 13.1 mile mountain half marathon with 1165 m of ascent that climbs to the 893 m summit of Cadair Idris. The marked route crosses woodland, glacial lakes and technical summit terrain and a GPX file is available.

A *50 km* trail on the marked Brenig Way from Corwen to Llyn Brenig dam, with 1450 m ascent, varied upland and forest terrain, three checkpoints, required kit and GPS trackers provided.

An eight hour looped ultramarathon at Delamere Forest where runners complete as many 6.02 km loops as possible. Mixed gravel and trail terrain with a single aid station, chip timing and results showing laps, distance and time.