Walk: Mawddach Estuary, Gwynedd

Enjoy beautiful scenery on this 10-mile walk to the stunning Cregennen Lakes in the foothills of Cader Idris in Snowdonia National Park

30th August 2017
Difficulty
Moderate
Distance
10 miles
Duration
6 hours

Surrounded by mountains, the Mawddach Estuary must be one of the most beautiful in Europe.

Wooden ships were built in its creeks before the arrival of the Great Western Railway, which connected with the Cambrian Coast at Morfa Mawddach. After operating for 100 years the line closed in the 1960s. Nowadays the former railway track between Morfa Mawddach and Dolgellau is used for walking and cycling and it provides a delightful walk on a crisp winter day. 

Barmouth Bridge
Barmouth Bridge and the Mawddach Estuary ©Getty
1. On to the trail

From the Morfa Mawddach railway halt, join the Mawddach Trail and pass through a gate. Look out for flocks of siskins and finches feeding as you pass the Arthog Bog nature reserve; peat was once cut here. At a clear cross path, turn right through gates to the A493. Bear right for 150m then go left on a lane and, before Arthog Village Hall, turn left on a bridleway. Follow the path uphill, take the access track to a lane and turn right. 

2. Seeing the past

After a farm, go left at an open space and between walls to a gate then cross a stone bridge over Afon Arthog. A few metres to your right are grass-covered banks which mark the remains of the medieval court Llys Bradwen.

Barmouth Bridge
Exposed sand on the estuary near Barmouth Bridge ©Getty

Turn left along a track and pass through two gates then bear right beside a wall. After two gates, look right to spot the stones of the Arthog Circle, a Bronze Age burial cairn. At a corner bear left and after a bend and a gate, immediately veer left over a hill to a corner stile. Slant left to a lane near the larger lake of Llynnau Cregennen

3. Wings up high

Turn left to the top of a rise and, after admiring views of the Mawddach Estuary, bear right to a stile. Ignore the left-hand path up Pared-y-Cefn hir, with its Iron Age hill fort, and with the hill on your left, stay on the main path, passing through remote heather moorland. Scan the sky for buzzards, peregrines and raven.

Raven
Ravens circle above the estuary ©Getty

To your right is the Craig-las escarpment, an outlier of the Cader Idris range, which may carry a blanket of early winter snow. Further on, the path eventually descends to a ladder stile. Slant right through two wall gaps and follow a track to a lane. Turn left and take a path on the right downhill to rejoin the lane. Turn right to pass Kings Youth Hostel and cross over a bridge. Because of the abundant mosses and lichens, this stretch of the Afon Gwynant is a Site of Special Scientific Interest.

4. Beyond the jetty

Emerge on the A493 and turn left. Soon turn right along Abergwynant Farm access lane and follow the river to a gate. Slant right to another gate and bear left to the Mawddach Trail. Turn left and after a ruined jetty, the ruins of a railwayman’s cottage are on your right. Pass an area of salt marsh with ditches and pools where waders feed and go through two gates to shortly rejoin your outward route. Retrace your steps to the start. 

More information

TERRAIN

Level former railway track, bridleway, rough pasture, moorland and lane, with a moderate climb to Llynnau Cregennen. The Mawddach Trail is accessible to wheelchair users.

HOW TO GET THERE

By car: From the A493, seven miles southwest of Dolgellau, take the signposted road to Morfa Mawddach railway halt. The car park is nearby.

By public transport: Morfa Mawddach is on the Cambrian Coast Machynlleth-Pwllheli railway line.

REFRESHMENTS 

George III Hotel Penmaenpool, Gwynedd LL40 1YD

01341 422525

TOURIST INFO

Dolgellau Tourist Information Centre – Ty Meirion, Eldon Square, Dolgellau LL40 1PU

01341 422888

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