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Mawddach Trail


14 km / 9 miles
The Mawddach Trail footpath and cycle route follows the edge of the spectacular Mawddach estuary, commencing at the town of Dolgellau, it finishes by crossing the three quarter mile long railway bridge over the mouth of the estuary into Barmouth (toll). The Mawddach lies between the mountain massifs of the Rhinogs to the north and Cadair Idris to the south.

The Trail is marked as a cycleway on OS mapping.

UPDATE October 2020 - Work to start upgrading the 150 year old Barmouth Viaduct starts in September 2020. It will affect the route of the path as it goes over the viaduct across the Mawddawch Estuary. During this upgrade the bridge will be closed temporarily on certain dates.
An alternative route is being looked into for walkers on the path and will be posted on this page. If you are planning to walk in this area, we suggest you also follow Network Rail social media for updates.


Path Type: Other Paths
Attributes: Easy
Cycle Route
Start: SH728179 - Dolgellau, Gwynedd View on StreetMap
Finish: SH611158 - Barmouth, Gwynedd View on StreetMap
Web Sites: Sustrans - Mawddach Trail Visit Snowdonia - Gwynedd Recreational Routes Mawddach Trail

Publications, Badges and Certificates:

Guidebook Julia Bradbury's railway walks  (Frances Lincoln (an imprint of Quarto)  - 2010 )
Guidebook Explore the Mawddach Trail  (Mawddach Trail )
External download Mawddach Trail (map)  (Visit Snowdonia ) Download


You can use the interactive controls to zoom in and out and to move around the map, or click on a path or a marker for more info.(interactive map help)

Show Connected Path Outlines
Paths Marked on OS mapping
Other Paths
Anytime Challenges

Show Accommodation
Hostel Accommodation
Bunk House

Contains Ordnance Survey data © Crown copyright and database right 2016.
© OpenStreetMap contributors under Open Database Licence.
Rights of way data from selected Local Authorities.
Large scale digital mapping is provided by John Thorn.
At high zoom levels the route is indicative only.
Purchase Ordnance Survey Maps:
OS Landranger 124
OS Landranger Active 124
OS Explorer 18, 23
OS Explorer Active 18, 23

Walking Support Providers:

Support Providers
Baggage Handling and Self Guided Walks (Celtic Trails Walking Holidays)

Accommodation within 5 km of this Path:

Hostel Accommodation
< 1 km
< 1 km
Bunk House
2 km
13 km

Connected Paths:


Reminder: Material downloaded from this website is for personal use only. Commercial use, reproduction, modification of all content is strictly prohibited without prior approval by the LDWA. Please Contact Us if you have any requests.

Route Profile:

15.2 km (9.4 miles)
231 m (758 ft) ascent
30 m (98 ft)  maximum height

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