Best lakes around Pen-Y-Waun are found in a region characterized by its blend of reclaimed industrial landscapes and proximity to the Brecon Beacons National Park. While Pen-Y-Waun itself is a nature reserve of fields, the surrounding area features notable lakes and reservoirs. These include artificial lakes within country parks and glacial lakes nestled in mountainous terrain. The area offers diverse aquatic environments for exploration, with many accessible lakes around Pen-Y-Waun.
Last updated: June 30, 2026
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The water here is stunning in the sunlight. A good place to take a few moments to rest the legs.
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Nice picturesque reservoir with a great campsite just below it if you are on a bike or hiking tour.
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A very pretty and accessible dam, the spillover makes it a lovely scenic addition to your loop of the reservoir or the nearby forest. There are lovely picnic areas on the way around the dam, some eating spots by way of a roadside 'scoff' van in a nearby lay-by on the eastern shore, and the cafe at Garwnant Visitor Centre on the north side of the reservoir.
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Dare Valley Country Park has a visitor centre and cafe, check opening times before relying on facilities.Dare Valley Country Park has a visitor centre and cafe, check opening times before relying on facilities.
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Lluest-wen Reservoir was constructed in 1898, but came to national attention in 1969 when a major leak caused an evacuation of residents down-valley while emergency repair work was carried out. Back in 1929 the place set a maximum daily rainfall record for Wales, with 211mm of rain recorded. You have been warned!
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Lluest-wen Reservoir was constructed in 1898, but came to national attention in 1969 when a major leak caused an evacuation of residents down-valley while emergency repair work was carried out. Back in 1929 the place set a maximum daily rainfall record for Wales, with 211mm of rain recorded. You have been warned!
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Dare Valley Country Park has a visitor centre and cafe, check opening times before relying on facilities. The paths can be wet and boggy at times, and if you're following the Penrhiwllech trail over the plateau of Tarren y Bwlfa, be aware of cliff edges!
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Llwyn-on reservoir, built in 1926, covers 150 acres and is the largest of the three in the Taff Fawr Valleys area. Walking along the shore you can be immersed in the fresh smells of the conifer forest and lapping sounds of the deep blue water - an ideal habitat for otters, great crested grebes, goldeneye, goosander and coot.
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The region around Pen-Y-Waun offers a diverse range of aquatic environments. You'll find artificial lakes within country parks like the Lake at Dare Valley Country Park, as well as several significant reservoirs such as Llwyn-on Reservoir Dam and Lluest-wen Reservoir. Further afield in the Brecon Beacons National Park, there are stunning glacial lakes like Llyn Cwm Llwch and Llyn y Fan Fach.
Yes, the Lake at Dare Valley Country Park is an excellent choice for families. It features a visitor center and café, and some paths around the lake are easily navigable and wheelchair-friendly. The park also has a Green Flag Award, recognizing its environmental excellence and amenities.
Dare Valley Country Park offers well-maintained paths suitable for walking and cycling, with some sections being wheelchair-friendly. For a different experience, the area around Gravel Roads by Lluest-Wen Reservoir and Wind Farm provides a network of gravel forest roads, ideal for covering ground quickly off tarmac.
Yes, several lakes in the wider region are popular for wild swimming. Llyn y Fan Fach, located in the Brecon Beacons, is particularly renowned for its clear waters and remote setting. Keeper's Pond (Pen-Ffordd-Goch Pond) is another accessible option with a car park nearby, offering a good spot for a dip.
The lakes and their surrounding areas are rich in wildlife. Around Llwyn-on Reservoir Dam, you might spot otters, great crested grebes, goldeneye, goosander, and coot. Dare Valley Country Park is home to various ducks, while the remote glacial lakes like Llyn y Fan Fach are known for birds of prey such as kestrels, buzzards, and red kites.
Yes, the region has a rich history. Dare Valley Country Park itself is built on land reclaimed from over a century of coal mining, representing a significant transformation from an industrial landscape. Keeper's Pond, a 19th-century man-made lake, is situated within the Blaenavon World Heritage Site, offering views across the Usk Valley and a glimpse into the area's industrial past.
There are numerous hiking opportunities. You can find easy loops around the Lake at Dare Valley Country Park, such as the 'Lake at Dare Valley Country Park – Tarren y Bwllfa loop from Cwmdare' (5.8 km, easy). For more challenging routes, the Brecon Beacons offer dramatic ridge walks around Llyn y Fan Fach and Llyn Cwm Llwch. You can explore more options on the Hiking around Pen-Y-Waun guide.
Yes, the area is popular for cycling. The Gravel Roads by Lluest-Wen Reservoir and Wind Farm provide excellent gravel biking terrain. For mountain biking, routes like 'Aberdare to Hirwaun Cycleway – View of Llyn Fach loop from Aberdare' (35.7 km, moderate) offer scenic rides. Discover more routes on the Gravel biking around Pen-Y-Waun guide and MTB Trails around Pen-Y-Waun guide.
The lakes can be enjoyed year-round, but each season offers a different experience. Spring and summer are ideal for walking, cycling, and wild swimming, with warmer weather and lush scenery. Autumn brings vibrant colors to the surrounding woodlands. Winter walks can be beautiful, especially around the glacial lakes, though paths may be wet or boggy, particularly at locations like Dare Valley Country Park.
Dare Valley Country Park has a visitor center and café, making it a convenient stop for refreshments. Near Llwyn-on Reservoir Dam, you can find a café at the Garwnant Visitor Centre on the north shore, as well as picnic areas. For other remote lakes, it's advisable to bring your own provisions.
Yes, Llyn y Fan Fach in the Brecon Beacons is famously associated with the legend of the 'Lady in the Lake'. This ancient Welsh folk tale tells of a magical lady who emerged from the lake and married a local farmer, bringing prosperity to his family.
Llwyn-on Reservoir Dam is the largest of three reservoirs in the Taff Fawr Valleys area. Visitors enjoy walking along its shores, immersed in the fresh scent of the conifer forest and the gentle sounds of the deep blue water. It's an ideal habitat for various birds and otters, and offers lovely picnic areas.


Still not found your perfect lake around Pen-Y-Waun? Check out the guides of these regions to see even more beautiful places.