Coed y Brenin Trail Runs – Half Marathon Waymarked Trail  5/5 (1)

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Route Summary:

21.67 km 757 m

Calculate the time using Naismith’s Rule and factor in your own pace.

Start and Finish:


none noted


Remember that we cannot outline every single hazard on a walk – it’s up to you to be safe and competent. Read up on Mountain Safety , Navigation and what equipment you’ll need.

Public Transport: Traveline for UK Public Transport
Parking and Post Code for Sat Nav (where applicable): 

Weather Forecast:

Met Office Snowdonia Mountain Weather

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Coed y Brenin Trail Runs – Half Marathon Waymarked Trail Route Map and GPX Download

Download the GPX File

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Summits and Places on this Route

No summits were found but here are a few nearby

Places Nearby:


Coed y Brenin Trail Runs – Half Marathon Waymarked Trail Details

Coed y Brenin  in Snowdonia is best known for its excellent mountain biking facilities, but has hosted the popular Trail Marathon Wales for the last few years. With this trail, you can follow the half-marathon route from the Visitor Centre across the Mawddach, Afon Wen and a sadistic and punishing climb to end! All that along a mix of forestry tracks, paths and a few minor roads.

Just what you need from a trail run.

This mid-length 14km trail run from the Visitor Centre in Snowdonia has plenty of ascent and interest as it climbs and descends between valleys, waterfalls and mine workings.  Follow the GR waymarks as noted at the link below.

GPX File for illustrative purposes.

For more information, and up to date information on any closures click here – Half Marathon to download the guide from the Run Coed y Brenin website.


Photo credit: souho / Foter / Creative Commotrailrunning snowns Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0)

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