GPS Cycle and Walking Routes

Llyn Cwm Llwch

3 miles (5 km)

Llyn Cwm Llwch is the best preserved glacial lake in South Wales. There are many legends about the lake and the fairies that live on an invisible island in the lake.
This walk takes you through the Cwm Llwch valley to this popular beauty spot in the Brecon Beacons National Park.
The walk starts at the car park near the lake and involves a steep climb along the Cwm Llwch river to the beautiful lake. The surrounding scenery of the Brecon mountains is simply stunning.

Llyn Cwm Llwch OS Map - Mobile GPS OS Map with Location tracking

Llyn Cwm Llwch Open Street Map - Mobile GPS Map with Location tracking

Further Information and Other Local Ideas

To extend your exercise in the area you could enjoy a walk to the towering Pen Y Fan above the lake. There's also the Pen y Fan Horseshoe Walk as an alternate path.
For more walking ideas in the area see the Brecon Beacons Walks page.

Cycle Routes and Walking Routes Nearby


Llyn Cwm Llwch - - 755519

Llyn Cwm Llwch. Looking across the tarn towards a ridge of moraine and then the headwall and peaks of Pen Y Fan and Corn Du.

Wild camping at Llyn Cwm Llwch - - 15980

Wild camping at Llyn Cwm Llwch. A popular wild camping spot, as it is sheltered and level.

The footpath to Llyn Cwm Llwch - - 755881

The footpath to Llyn Cwm Llwch. The red earth footpath leading down to the tarn in the valley can be seen winding its way along the edge of the ridge which descends from Corn Du.

Llyn Cwm Llwch - - 755528

This photograph shows how the shallower parts of the tarn have a rich browny-red hue as a result of the bedrock (Old Red Sandstone) of the Beacons. The ridge on the other side of the tarn is moraine material.


GPS Files

GPX File

Llyn Cwm Llwch.gpx (On Desktop:Right Click>'Save As. On Ipad/Iphone:Click and hold>Share>Save to Files')

Memory Map Route

Llyn Cwm Llwch.mmo (On Desktop:Right Click>'Save As. On Ipad/Iphone:Click and hold >Share>Save to Files)