Saturday Walkers Club

Henrhyd Waterfalls (Sgwd Henrhyd) from Craig y Nos Walk

Low level but rewarding walk above the Tawe River to scenic wooded gorge (NT) with a waterfall you can walk behind.


13.4 km (8.3 mi), of which 4.5 km are on tarmac or concrete. Cumulative ascent/descent: 270m. For alternative start points, resulting in a shorter or a longer walk, see below Walk options.


3 out of 10 Time: 4 hours walking time.


Craig y Nos Bus Stop Bus Stop is on line T6 (Swansea - Neath - Ystradgynlais – Brecon), with up to 8 buses a day Mon-Sat and up to 5 on Sundays and Bank Holidays, with a journey time of 40 mins from Neath (and 37 mins from Brecon). The journey time by train from London to Neath is from 2 ¾ hours.


Saturday Walkers’ Club: This walk is not recommended as a daywalk from London, but if based in the area for a longer stay. Accommodation is available in Craig y Nos, nearby in Glyntawe or Pen y Cae, and further along the bus line in Ystradgynlais, Sennybridge or Brecon.

OS Maps OS Landranger Map: 160 (Brecon Beacons) OS Explorer Map: OL12 (Brecon Beacons National Park)
Walk Notes

The walk starts through the Craig y Nos Country Park, an idyllic spot on the banks of the Afon Tawe (River Tawe) with its Victorian Gothic building (now a hotel), which was home to the world renowned opera singer Adelina Patti from 1878 to 1919. The route then follows quiet bridleways and country lanes with excellent views across the valley to the Cribarth mountain, to a steep cliff edge above the Tawe River which it then follows for an extended stretch, with the river running below in rapids.

You then leave the Tawe to walk up a spectacular wooded ravine, formed by the Nant Llech. The river’s name (‘Rock Slab Stream’ in English) derives from the rock strata that tilt or dip to create small waterfalls along its course, several of which can be observed from close quarters. The wooded gorge (owned and managed by the National Trust) is an Ancient Woodland, meaning many of the trees (especially on the southern bank) have never been felled. It is also a SSSI (Site of Special Scientific Interest) for its humid habitat, supporting a wide range of damp-loving species. You ascend through the scenic gorge to a natural amphitheatre, carved out over millennia by the highest waterfall in South Wales, the Sgwd Henrhyd (Henrhyd Waterfall), which drops down a rocky ledge forming a water curtain you can walk behind.

From there country lanes and paths across pastures get you a prized lunch pub in Pen y Cae and then back along the bridleways and lanes of the outward route to finish with a riverside loop through the Craig y Nos Country Park to its tea rooms.

Walk options

A triangular section along cliffs above the Tawe River, up the Nant Llech valley to the Henrhyd Falls and back through fields and lanes is the core of this walk. Combined with the start and finish in Craig y Nos this makes for an interesting and fulfilling, yet not too strenuous walk, complete with lunch pub and tea stop.

Alternative Starts, linking to the triangular section, are described from:

  • further north in Glyntawe, for a slightly longer and tougher walk (14.3 km/8.9 mi, 4/10 rating);
  • further south in Pen y Cae or Ynyswen, for a much shorter walk (from 6.8 km/4.2 mi, 1/10 rating).

All these points are linked by the T6 bus line and can also be Alternative Finish Points.

Lunch and Tea

In Pen y Cae
Pen y Cae Inn (Restaurant & Gallery) Brecon Road, Pen y Cae, Swansea Valley, Powys, SA9 1FA (01639 730 100). The Pen y Cae Inn is located 10.5 km/6.4 mi into the walk and one of the best gastro pubs in Wales (Voted “Best” in 2015 in fact) and also offers accommodation. Open for lunch Tue-Sun.
Ancient Britain Brecon Road, Pen y Cae, Swansea, Wales, UK SA9 1YY (01639 730 273).

In Ynyswen/Abercrave
Abercrave Inn 145 Heol Tawe, Abercrave, Swansea Valley, SA9 1XS (01639 731 002).

In Craig y Nos
Changing Seasons Tea Rooms & Restaurant Craig y Nos Country Park, Brecon Road, Pen y Cae, Swansea, SA9 1GL (01639 731 498). Open daily 10.00- 18.00 (-22.30 Fri-Sat), serving quality, local seasonal food and drink.

In Glyntawe
Tafarn y Garreg A 4067, Glyntawe, Swansea, Powys, SA9 1GS (01639 731 415). The Tafarn y Garreg had been shut for several years but re-opened in summer 2015. Open 12.00-23.00 Tue-Fri, 12.00-23.00 Sat and 12.00-18.00 Sun. Food served 12.00-20.00 Tue-Fri and 12.00-21.00 Sat-Sun.
The Gwyn Arms A 4067, Glyntawe, Swansea, Powys, SA9 1GP (01639 730 310). A roadside pub in a picturesque valley with a large garden, offering good value pub food every day. Open 11.00-late daily. Food served 12.00-20.00 Mon-Sat and 12.00-16.00 Sun.

Brecon Beacons

The Brecon Beacons is a national park in south Wales. It consists of bare, grassy, glacial mountains, with north facing escarpments. Its peaks, just shy of 1,000m (3,000ft), are the highest mountains in the southern UK. The national park is also noted for reservoirs, and the Dan yr Ogof caves. Its 4 mountain areas, from west to east are:

The Black Mountain (singular!).

Fan Brycheiniog (803m) and the Dan yr Ogof caves.

medium The Black Mountain (Fan Brycheiniog and Fan Foel) from Glyntawe - The best ridge walk in the southern UK to a summit.
tough The Black Mountain (Y Mynydd Du) from Glyntawe - A longer version of the above

Fforest Fawr.

Fan Gyhirych (725m), Fan Nedd (663m), Fan Fawr (734m), and the Henrhyd waterfalls (Sgwd Henrhyd)

low-level Henrhyd Falls (Sgwd Henrhyd) from Craig y Nos - Famous waterfall

The Brecon Beacons.

Pen y Fan (886m), Corn Du (873m), Cribyn (795m), Fan y Big (719m), Waun Rydd (769m). South of Brecon, north of Merthyr Tydfil.

medium Brecon Beacons (Pen Y Fan) from Storey Arms - Short walk to the highest summit in southern England
tough Brecon Beacons (Pen Y Fan) Horseshoe from Neuadd Reservoir - Classic walk bagging all the Brecon peaks

The Black Mountains (plural!).

Waun Fach (811m), Black Mountain (703m). Abergavenny to the south. Hay-on-Wye to the north. On our 'to do' list


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Start: Bus Stop, Craig y Nos, Powys, SA9 1GL | Directions



Start walking Large print Using GPS data

National Rail: 03457 48 49 50 • Travelline SE (bus times): 0871 200 2233 (12p/min) • TFL (London) : 0343 222 1234



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Walk Directions  

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