Rhaeadr Cynfal

Rhaeadr Cynfal (Cynfal Falls) is a waterfall in the wooded gorge of the Afon Cynfal, just outside the village of Llan Ffestiniog in Gwynedd, inside Snowdonia (Eryri) National Park, North Wales. It sits within Ceunant Cynfal National Nature Reserve, managed by Natural Resources Wales.

What will you see along the Afon Cynfal?

Over a very long time the river cut a gorge that the Welsh environment agency counts among the finest in Britain. Water drops in steep cascades, and the most dramatic stretch is seen from a restored Victorian viewing platform. The riverbed shows classic erosion features: potholes, narrow slots, arches and a freestanding rock stack.

That stack is called Huw Llwyd's Pulpit. Local tradition says Huw Llwyd, a reputed sorcerer from the days of James I, would climb onto the rock to recite verse and preach.

Why is the gorge a protected site?

Oak woodland clothes the gorge and is regarded as a remnant of Britain's Atlantic rainforest. It is one of six Meirionnydd oakwood reserves, of which only two welcome visitors. The damp air suits mosses and liverworts, and the gorge is a Site of Special Scientific Interest; NRW material lists well over a hundred species of them. Redstart, wood warbler and pied flycatcher nest among the trees.

How do you get to the falls?

The walk begins in Llan Ffestiniog village. Natural Resources Wales describes it as a strenuous out-and-back route of about 2.2 km (1.4 miles) with roughly 90 m of climbing, taking around an hour. The path is not waymarked, can be narrow and in places runs close to the gorge edge. Other guides describe longer loop versions, so check a current route description before you set off. Llan Ffestiniog is reached via the A470 from Blaenau Ffestiniog or Trawsfynydd.

When should you visit?

The falls look their best after rain, though the path is then slippery. Spring and early summer bring fresh green woodland and the busiest birdlife. Wear boots with good grip and keep well back from the edge.

Frequently asked questions

Can you drive to the falls?

No, the reserve is reached on foot only. The route starts in the village of Llan Ffestiniog.

Is the walk suitable for children?

It is short but steep and narrow in places, which is why NRW grades it strenuous. Take care with young children.

Who was Huw Llwyd?

A figure from local lore, described as a sorcerer of James I's time. The rock pillar in the river carries his name.

Is this the same as Swallow Falls?

No. Swallow Falls is near Betws-y-Coed, while Rhaeadr Cynfal lies near Llan Ffestiniog, some distance to the south-west.