Skamper
42.3km

The Clwyds Trail Marathon — 42.3 km Running Route

by Skamper

The Clwyds Trail Marathon is a 42.3 km (26.3 miles) loop in Llanbedr-Dyffryn-Clwyd, Wales: hilly, with 1470 m of climb, on trail ground.

1470 mAscent
Paved5%Paved
4/5Hilly

Start anywhere route. Jump on the course line at any point — wherever you start will also be your finish point.

The Clwyds Trail Marathon running route
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Photos

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Elevation

Explore the The Clwyds Trail Marathon

Location: Llanbedr-Dyffryn-Clwyd, Wales

This demanding Clwydian Range marathon route, starting from Llanbedr-Dyffryn-Clwyd, offers a formidable challenge with significant ascent across diverse terrain. You'll navigate well-defined grassy paths, heather moorland, and rocky or gravel tracks, with sections of compacted dirt and potentially boggy peaty ground. Expect undulating miles, including ascents to peaks like Moel Famau and Penycloddiau, rewarding your efforts with panoramic views of North Wales.

This run is ideal for experienced ultra-runners seeking a true test of endurance and mental resilience. Its varied surfaces and steep technical sections make it excellent for advanced trail race preparation or for those looking to push their limits amidst the rugged beauty of the Clwydian Hills. Be prepared for a long day out in potentially wild conditions.

Common questions

How long is this route?
It's a 42.3 km loop in Llanbedr-Dyffryn-Clwyd, Wales with around 1470 metres of total ascent.
How long will it take me to run it?
Use the 'Your time estimate' panel at the top of this page — it predicts your finish time for this exact route from your age, sex and most recent benchmark, accounting for distance, ascent and surface.
Is it hilly?
Yes. It rates 4 out of 5 on our hill scale — a hilly route with sustained climbing. About 35 metres of climb per kilometre, 1470 metres in total.
What's the surface like?
It's an off-road route — trail shoes are recommended and underfoot can be soft or rocky in places.

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