Coed y Brenin Trail Runs – Half Marathon Waymarked Trail

By Dave Roberts   

on August 28, 2014    5/5 (1)

Coed y Brenin Trail Runs – Half Marathon Waymarked Trail

Further Details

Route Summary:

21.67 km 757 m

Activivity Type: 

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

Summits and Places on this Route


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.

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Coed y Brenin Trail Runs – Half Marathon Waymarked Trail Ordnance Survey Map and GPX File Download

Download file for GPS

Coed y Brenin Trail Runs – Half Marathon Waymarked Trail

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)


Dave Roberts founded Walk Eryri in 2004, with the aim of providing routes that are off the beaten track. Walk Eryri is now part of Mud and Routes which continues to provide more off beat routes and walks in Snowdonia and beyond. Dave has been exploring the hills of Eryri for over thirty years, and is a qualified Mountain Leader. Dave also established Walk up Snowdon, Walk up Scafell Pike and Walk up Ben Nevis just to mention a few.

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