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Visiting Snowdonia

Cader Idris from Foel Caerynwch

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Cwm Penamnen, Dolwyddelan

Enjoy this lovely walk through the woods up to Cwm Penamnen valley where you can enjoy magnificent views of the mountains of Snowdonia. The valley is steeped in history and part of the walk follows the ancient Roman road of Sarn Helen that linked the Roman forts of Tomen y Mur near Trawsfynydd and Caerhun in the Conwy Valley.

How to get there?
The village of Dolwyddelan stands on the A470 between Blaenau Ffestiniog and Betws y Coed. Driving along the A470 through the village of Dolwyddelan, turn off the main road opposite Gwydyr Hotel. Pass SPAR stores and follow the road through the village turning left after the first bridge passing the primary school on your left and into the railway station's free car park on the right.

The Long Walk Details
Distance: 6 miles
Time: 3 hours
Ascent: 410m
Grade: Moderate Leisure Walk

The Short Walk Details
Distance: 2 miles (3.5km)
Time: 1 hour
Ascent: 230m
Grade: Easy Leisure Walk

Start / Finish: Car park at Dolwyddelan train station (OS 738521)
Postcode: LL25 0TJ
Relevant map: Ordnance Survey Explorer OL 18 (Harlech, Porthmadog & Bala)
Facilities: Toilets, shops, places to eat and stay in Dolwyddelan

Note: This map is intended as a rough guide only. You should use the most recent version of the relevant Ordnance Survey map (see above) when walking this route.

Short Walk - Easy Leisure Walk

1. Walk out of the car park turning left crossing the railway bridge. This is the railway which runs from Blaenau Ffestiniog to Llandudno Junction. After crossing the bridge turn left and then turn right for Cwm Penamnen passing Glan Gors street. Follow the track uphill towards the woods.

2. When you come to a junction, follow the track to the right.

3. Turn right when you see the sign Pont Carreg Alltrem, crossing the bridge and the river Penamnen. The bridge affords a splendid view of Foel Goch to the left.

4. Once you have reached the bank on the other side, turn right past the picnic tables and follow the track back down to the village. You will pass the Penamnen Houses on your way. Archaeological work has taken place here.

5. The track leads back to the railway bridge. Cross the bridge turning right into the car park.

Long Walk - Moderate Leisure Walk

1. Walk out of the car park turning left crossing the railway bridge. This is the railway which runs from Blaenau Ffestiniog to Llandudno Junction. After crossing the bridge turn left and then turn right for Cwm Penamnen passing Glan Gors street. Follow the track uphill towards the woods.

2. When you come to a junction, walk straight on. As you climb up the track you will pass a rock by the name of Carreg Alltrem on the left which is very popular with climbers practising their skills.

3. Continue along the track until the fork, pausing for a short time to enjoy the fantastic view over Cwm Penamnen. To the right you will see the peaks of Moel Siabod, Pen yr Helgi Du, Pen Llithrig y Wrach and Carnedd y Cribau. The path of the river, as well as the Roman road, Sarn Helen, can be seen clearly in the Valley below. Take the track to the left walking up towards the Valley.

4. When you see yellow arrows on a sign on the left hand side of the road turn down the path to the right starting your journey along Sarn Helen. Follow the path down the Valley following the yellow arrows and passing a stone built house called Tŷ'n y Cwm (house in the valley).

5. Having passed Tŷ'n y Cwm, turn right joining the tarmac road and then start on your journey back towards Dolwyddelan passing Carreg Alltrem bridge on your right.

6. You will pass the Penamnen Houses on your way back towards the village. Archaeological work has taken place here.

7. The track leads back to the railway bridge. Cross the bridge turning right into the car park.

Dolwyddelan

Cwm Penamnen, Dolwyddelan (© SNPA)

Header image - Morfa Harlech (© Crown copyright (2014) Visit Wales)