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Rhondda Cynon Taf

Pen-Y-Waun

Top 10 Lakes around Pen-Y-Waun

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.

Best lakes around Pen-Y-Waun

  • The most popular lakes is Gravel…

Last updated: June 30, 2026

Llwyn-on Reservoir Dam

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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 …

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Lluest-wen Reservoir Dam Wall

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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. …

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Pontsarn Blue Pool

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Blue Pool.
At the bridge, head downstream on the right bank, following the path, to reach the Pontsarn Blue Pool. The path can be followed as far as desired beyond …

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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 …

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Crossing the moorland from Rhigos towards Aberdare is a network of gravel forest roads.

Great in the sun, but not so good with the wind in your face, it's an …

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Popular around Pen-Y-Waun

Road Cycling Routes around Pen-Y-Waun

Hiking around Pen-Y-Waun

Cycling around Pen-Y-Waun

Running Trails around Pen-Y-Waun

MTB Trails around Pen-Y-Waun

Gravel biking around Pen-Y-Waun

Tips from the Community

Mark Jacobs
April 7, 2026, Lluest-wen Reservoir Dam Wall

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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Adie
January 10, 2023, Llwyn-on Reservoir Dam

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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Frequently Asked Questions

What types of lakes can I find around Pen-Y-Waun?

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.

Are there family-friendly lakes with amenities near Pen-Y-Waun?

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.

Which lakes are good for walking or cycling with easy access?

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.

Can I go wild swimming in the lakes near Pen-Y-Waun?

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.

What kind of wildlife can I expect to see around the lakes?

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.

Are there any historical or cultural points of interest near the lakes?

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.

What hiking opportunities are available near these lakes?

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.

Are there cycling routes that incorporate the lakes?

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.

What is the best time of year to visit the lakes around Pen-Y-Waun?

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.

Where can I find refreshments or visitor facilities near the lakes?

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.

Are there any legends associated with the lakes in this region?

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.

What makes Llwyn-on Reservoir worth visiting?

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.

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