Walking Route: Fan Brycheiniog, South Wales

It's off to a lesser known corner of the Brecon Beacons for a wild walk.


Posted: 1 February 2008
by Dave Mycroft

Walking Route - Fan Brycheiniog, South Wales

Glyntawe > Fan Brycheiniog > Waun Lefrith > Glyntawe

Average Time: 7 hours

Distance: 13 miles (21 Km)

Height Gain: 3386 ft (1116m)

Collectively known as The Black Mountain this often forgotten porton of the Brecon Beacons National Park offers excellent walking

Maps: OS LR 160, Explorer OL12

Online: Streetmap

Strenuousness: 2
Technicality: 2
Photo Grade: 2

Start Point: SN 846 165


Overview Gentle slopes and sharp escarpments characterise this long day's walk in what is tradionally known as Carmarthen Fan. From a high point of over 2600 ft on Fan Brycheiniog the land falls away to the south where it meets the limestone and Dan Yr Ogof cave system.


Ideal country for wild camping - Cruxter Man

Collectively known as The Black Mountain this often forgotten porton of the Brecon Beacons National Park offers excellent walking in fine weather, but can become desolate and diificult to navigate in poor weather.


Section 1: Glyntawe to Fan Brycheiniog

Distance: 4.7 miles (7.6km)

Height Gain: 2295ft (699m)

Average Time: 3 hours


Starting from the car park at the Dan Yr Ogof show caves take the path to the Shire Horse Centre then turn left onto a wide bridleway heading north east towards Carreg Goch.

At the rocks on the right hand side of the path turn right to cross the Afon Haffes just beyond the gorge of Cwm Haffes. The south flank of Fan Hir rises steadily in front, and a bearing slightly East of North across the trackless limestone and grass brings you to the ridge line three miles from your start point.

The next mile follows the edge of the escapment and climbs steadily to Bwlch Giedd with views down to Llyn Y Fan Fawr. A final climb brings you to the summit trig point of Fan Brecheiniog.


View from the summit with Pen y Fan above a Brecon cloud
inversion -
Arafdown


Section 2: Fan Brycheiniog to Waun Lefrith

Distance: 2.3 miles (3.6km)

Height Gain: 416ft (1271m)

Average Time: 1 hour 15 mins


From the summit of Fan Brycheiniog you can continue north west following the line of the escarpment, or cut the corner off and bypass Fan Foel for a direct approach to Bannau Sir Gaer to the west.

Although only a minor top it's worth the diversion to Fan Foel for the view of Bannau Sir Gaer's steep northern face and Llyn Y Fan Fach below. Bannau Sir Gear is a long, almost level, ridge stretching from its eastern summit, Picws Du to the western summit at Waun Lefrith.

The route turns south west from here, but a few yards north of the summit is the best place for views of Llyn Y Fan Fach.


Section 3: Waun Lefrith to Glyntawe

Distance: 6 miles (9.7km)

Height Gain: 613ft (187m)

Average Time: 2 hours 45 mins


The initial part of the return leg is pathless, with a choice of routes depending on visibility.

Directly west of Waun Lefrith lies the rocky Carreg Yr Ogof, easily identifiable on approach and with a good path just to the east. The downside of this option is the lower slopes of Waun Lefrith and Carreg Yr Ogof tend to get boggy.


The view from Fan Hir looking down tp the Afan Tawe
Cruxter Man

Alternatively take a south west line from Waun Lefrith down the ridge to reach a wide track at Esgair Ddu. You reach the same point from Carreg Yr Ogof by taking the path heading south as you approch the summit from Waun Lefrith, then keep left at the fork.

From Esgair Ddu follow the track downhill to the east then turning south east. A short climb at Ban Wen Gwyn comes just before another fork, where again staying left will keep you on course.

The path now follows the flat, boggy plain of Afon Haffes, with marshy ground to the left and the rocks of Diswylfa then Castell y Geift up to the right. The final few hundred yards retrace your outward steps to Dan Yr Ogof and the start point.


Route Map


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