Lakes around Ceulanamaesmawr, a community in Ceredigion, Wales, are characterized by their location within the remote Cambrian Mountains. The area features a significant man-made lake, Nant-y-Moch Reservoir, which was created as part of the Cwm Rheidol hydroelectric power scheme. This reservoir covers approximately 680 acres and is situated near the Pumlumon mountain range. The landscape offers tranquil mountain scenery and opportunities for outdoor activities.
Last updated: May 6, 2026
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Third highest summit in the Pumlumon range, Pen Pumlumon Llygad-bychan is perhaps most notable for its proximity to the source of the River Wye. To the north of the summit is the lovely pool of Llyn Llygad Rheidiol, while Pumlumon's principal summit is just a short walk along the Cambrian Way to the northeast. While the summit itself is not particularly distinguished and is known to be on the boggy side, it does offer lovely views across the Cambrian Mountains of Mid Wales.
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The Bearded Lake or Llyn Barfog is a pretty mountain lake below Mynydd y Llyn. It's fringed with water lilies and other plants which may explain its name. Legend has it that once a monster lived here, terrorising the local people. King Arthur came to rid the area of the menace, lassoing the monster with magical chains and dragging it out of the lake with his horse Llamrai. You can even see the horse’s footprint in a nearby rockface - Carn March Arthur.
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Pen Pumlumon Llygad-Bychan (727m, a Hewitt & Nuttall) is the third highest summit on the Plynlimon massif. The summit is boggy and marked by a few stones. The source of the River Wye, is just South of the summit. The picturesque glacial lake of Llyn Llygad Rheidiol lies to the North.
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Fast and flowing running almost along side the red trail back to the lake. Great to add on to the end as its a short climb back to the top for it.
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A great section running down to the lake and if you time it right you will be swooping down along with the kites for feeding time.
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The Ceulanamaesmawr area, nestled in the Cambrian Mountains, features a mix of natural mountain lakes and significant man-made reservoirs. The most prominent is Nant-y-Moch Reservoir, a large body of water created as part of a hydroelectric scheme, offering wild mountain scenery. You'll also find picturesque natural pools like Llyn Barfog (Bearded Lake) and Llyn Llygad Rheidol.
Yes, the area offers excellent hiking opportunities for various skill levels. Around Nant-y-Moch Reservoir, you can find peaceful strolls along the water's edge or more challenging mountain treks into the surrounding Cambrian Mountains, including routes to nearby Dinas Reservoir. For more detailed routes, explore the hiking guide for Ceulanamaesmawr.
The lakes around Ceulanamaesmawr are ideal for family outings focused on nature and gentle walks. Many routes around Nant-y-Moch Reservoir are dog-friendly and suitable for peaceful strolls. The serene environment is perfect for picnics and wildlife spotting, including red kites and buzzards. While specific 'family-friendly' categorised highlights aren't listed, the general nature of the area lends itself to outdoor family time.
Yes, Nant-y-Moch Reservoir is well-known for its wild brown trout, with fishing often described as 'step and cast'. Perch are also present. Fly fishing is permitted, and day or season tickets can typically be purchased in the nearby village of Ponterwyd.
The Nant-y-Moch Reservoir has a notable history; before its creation in 1964, a graveyard and ancient Iron Age cairns were relocated to preserve these historical remnants from being submerged. Additionally, Llyn Barfog (Bearded Lake) is steeped in local legend, said to be where King Arthur lassoed a monster with magical chains.
The remote setting of the lakes, particularly around Nant-y-Moch Reservoir, offers excellent opportunities for spotting wildlife. Red kites and buzzards are commonly seen soaring overhead, adding to the wild mountain scenery.
Absolutely. The surrounding Cambrian Mountains, particularly near the Pumlumon mountain range, offer challenging mountain treks. For instance, the area around Pen Pumlumon Llygad-Bychan summit provides rugged terrain and stunning views for experienced hikers. You can find more challenging routes in the hiking guide for Ceulanamaesmawr.
The lakes offer beauty year-round, but for outdoor activities like hiking and fishing, the warmer months from spring to autumn generally provide the most pleasant conditions. The remote mountain scenery is particularly tranquil during these times, though winter walks can offer a unique, stark beauty for those prepared for colder weather.
Yes, the area around Nant-y-Moch Reservoir is described as excellent dog-friendly walking country. Many trails allow dogs, making it a great destination for walks with your canine companion. Always ensure dogs are kept under control, especially near wildlife or livestock.
Yes, there are several mountain biking opportunities in the vicinity. Trails like the 'High as a Kite Red Trail' and 'Barcud Bach Blue Trail' offer exciting descents and views, often running near the lakes. You can explore more options in the MTB Trails around Ceulanamaesmawr guide.
For expansive views, head towards Pen Pumlumon Llygad-Bychan summit. This viewpoint offers lovely vistas across the Cambrian Mountains of Mid Wales, with Llyn Llygad Rheidol visible nearby. The areas around Nant-y-Moch Reservoir also provide dramatic mountain scenery.
While the serene nature of the lakes might be inviting, specific regulations regarding wild swimming can vary. It's always advisable to check local signage or contact local authorities for current rules and safety guidelines before attempting to swim in any of the reservoirs or natural lakes.


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