Day 2 of the Brecon Beacons Way - Carreg Cennen Castle to YHA Llanddeusant

This walk is part of the trek The Brecon Beacons Way from Llangadog Station to Abergavenny Station.

This walk takes us north from Carreg Cennen Castle, into the Black Mountains on the second leg of the Brecon Beacons Way. There are a couple of climbs but nothing too difficult and there's plenty to see along the way.

Technical sheet
No. 3063868
A Cyngor Bro Dyffryn Cennen walk posted on 09/03/20 by El Sud. Update : 31/03/20
Calculated time Calculated time: 7h35[?]
Distance Distance : 20.21km
Vertical gain Vertical gain : 647m
Vertical drop Vertical drop : 619m
Highest point Highest point : 630m
Lowest point Lowest point : 158m
Moderate Difficulty : Moderate
Back to starting point Back to starting point : No
Walking Walking
Area Area : Brecon Beacons
Location Location : Cyngor Bro Dyffryn Cennen
Starting point Starting point : N 51.85513° / W 3.935294°
Ending point Ending point : N 51.905896° / W 3.779783°
Download : -


(D) From The Barn café, head up to Carreg Cennen Castle but bear left to follow a path that borders a wood before coming out at a kissing-gate and through a metal gate to a footbridge over a stream. The path now heads south-east, climbing up gently. At a crossroads of paths turn left then immediately right to head for Pillow Mound and Brondai Farm. When you meet a track, turn left to climb up heading north-east, finally ending up at a cattle grid. Shortly afterwards, take the path leading off to the right, maintaining the high ground. When you reach a T-junction of paths, turn right along a track to a disused quarry, then a path to the left to go back to the track. The route leaves the track again to explore more disused quarries up on the right. Finally, the route moves away from the track to reach Pen Rhiw-ddu and crosses the A 4069 that goes south to Brynamman.

(1) Go through the car park and head north-east to some old lime workings, turning south-east to hug the shoulder of Moel Gornach and Foel Fraith. Cross another path that leads (left) to climb Cwm Sawdde Fechan but our route continues a little way yet, then turns north to climb Garreg Las. Follow the path over the top and drop down to the craggy Carreg Yr Ogof to pass the trig point and meet another path coming in from the right. This heads off the mountain on a nice grassy path ending at a wooden stile next to a metal gate. The route keeps going downhill with a wire fence on the right and small trees on both sides. The path becomes a pebbly track that takes you through farmland towards Gellygron Farm.

(2) At the road bear right, ignoring the road going to Gellygron Farm and head north to the river Afon Sychlwch. Ignore the track leading off to the right and head straight on across the small bridge and up the other side. The wooded track opens out at Cwmsawdde farm and high hedges prevent better visibility. Keep heading up the road to reach a walled area that turns out to be the church grounds as you reach a T-junction. Turn right, then left to reach YHA Llanddeusant.(A)

Waypoints :
D : km 0 - alt. 234m - Carreg Cennen Castle
1 : km 9.08 - alt. 477m - Pen Rhiw-ddu
2 : km 19.4 - alt. 225m - Gellygron Farm
A : km 20.21 - alt. 264m - YHA Llanddeusant

Useful Information

This is fairly open countryside with little in the way of shelter apart from the woods. Make sure you have waterproofs as the weather can change quickly. If this is as far as you can go on the Brecon Beacons Way, then a short trek to Llangadog via the Red Kite Feeding Centre and Bryn-glas will give you the option to catch a train or recover a car you might have left there the day before.

Visorando and this author cannot be held responsible in the case of accidents or problems occuring on this walk.

During the walk or to do/see around

Apart from Carreg Cennen Castle at the beginning, there a number of disused quarries, shake holes (or sinkholes) and caves. The land is a mixture of moorland, farmland and woods. It's only the edge of the Brecon Beacons and a foretaste of what's to come as the route progresses east.

Other walks in the area

Organisation / Walking Club / Mountain guide
distance 15.83km Vertical gain +420m Vertical drop -231m Durée 5h45 Moderate Moderate
Starting point Starting point in Llangadog - Carmarthenshire

This is a short walk to begin the Brecon Beacons Way, going from west to east. You might need a few hours to get to Llangdog Station at the start of the walk or you might choose to stay in the village before setting out on the trail. Either way, this route is an easy way to break into your stride without any strain or stress.

Organisation / Walking Club / Mountain guide
distance 182.15km Vertical gain +6356m Vertical drop -6344m Durée 8 days Moderate Moderate
Starting point Starting point in Llangadog - Carmarthenshire

This is the Beacons Way "the other way" from West to East. The prevailing wind comes from the west, so I prefer to have it at my back than in my face. However, there are a lot of North-South headings along this route and even an occasional westerly path. The scenery is fantastic either looking forward, back or to the side. A route to be enjoyed either way.

Organisation / Walking Club / Mountain guide
distance 16.03km Vertical gain +675m Vertical drop -741m Durée 6h30 Moderate Moderate
Starting point Starting point in Llanddeusant - Carmarthenshire

The route leaves Llanddeusant and heads into the Black Mountains on the third leg of the Brecon Beacons Way. It's generally a walk south along ridges and mountain tops to finally drop down to the Craig-y-nos Country Park on the Afon Tawe river.

distance 17.99km Vertical gain +652m Vertical drop -685m Durée 7h00 Difficult Difficult
Starting point Starting point in Llanddeusant - Carmarthenshire

This is a brilliant linear trail in the Brecon Beacons National Park, incorporating many good viewpoints and one extra-special one. It begins in Carmarthenshire near the village of Llandeusant and ends in Powys in the Glyntawe valley, crossing a mountain ridge that beats Pen-y-Fan in my view, but because it's less accessible is less well-known.

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The GPS track and description are the property of the author.