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Llyn Cwm Llwch

Wild Swimming Spot

Terrain:

Activities

Best Time To Visit

Lakeside, Mountain, Valley

Walking, Swimming, Photography

Year round

Photo: Alan Richards via Geograph.org.uk

Llyn Cwm Llwch is a small glacial lake in a rock hollow directly below Pen y Fan and Corn Du, the highest peaks of the Brecon Beacons. A curved bank of moraine, left by the ice, rims its lower edge. A well-used path climbs to it from the Cwm Llwch car park to the north, passing an obelisk that marks...

10

Parking nearby

3

Food Spots nearby

0

Staycations nearby

Parking:

Food:

Staycations:

10 overnight parking

The Tai’r Bull Inn – Libanus, Hop In Beer & Gin House – Brecon, The Clarence Inn – Brecon

FAQ's/Things to Know

Where is Llyn Cwm Llwch?
High on the northern slopes of the Brecon Beacons, this glacial pool rests quietly below the highest mountain peaks in South Wales. Hikers generally encounter the water after completing a steady climb up from the valley.

What type of place is Llyn Cwm Llwch?
Llyn Cwm Llwch is a small mountain lake in the Brecon Beacons National Park in Powys, Wales.

When is the best time to visit Llyn Cwm Llwch?
Year round access means you can enjoy the changing scenery across all seasons. Calm, clear mornings offer the finest conditions for capturing reflections on the glassy water before any wind picks up.

What can you do at Llyn Cwm Llwch?
Brave swimmers can take a cold dip while looking straight up at the towering sandstone ridges. Walking around the shoreline also provides an excellent chance to take photos or look out for local sheep grazing the slopes.

How long should I spend at Llyn Cwm Llwch?
Allocating roughly an hour allows ample time to rest and absorb the absolute isolation of the mountains. Anyone planning a full circuit up to the nearby summits will naturally require a much longer stay.

Where do I park at Llyn Cwm Llwch?
Space for ten vehicles exists nearby, consisting entirely of ten overnight parking slots. Full details are available on the UK Hidden Gems app.

Where can I eat near Llyn Cwm Llwch?
The Tai’r Bull Inn – Libanus, Hop In Beer & Gin House – Brecon, and The Clarence Inn – Brecon offer three places to get a meal. Full details are available on the UK Hidden Gems app.

Where can I stay near Llyn Cwm Llwch?
There are no staycation spots recorded immediately near Llyn Cwm Llwch, check the UK Hidden Gems app for the nearest options.

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Last Updated:

02 July 2026

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