Best lakes around Treherbert are situated within the Rhondda Cynon Taf area, a region characterized by its industrial heritage and reclaimed landscapes. These locations, often transformed from former colliery sites, provide scenic beauty and opportunities to connect with nature. The area offers a variety of lakes and reservoirs for exploration.
Last updated: May 2, 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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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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Cwm Clydach Countryside Park is an oasis of calm for wildlife with stunning views that has been created from the blackened scar of a coal mine. Walking alongside the lakes offers the chance to spot Kingfishers, herons, butterflies, newts and more. The two lakes are referred to as the “top lake” and “bottom lake” and there are also waterfalls. For refreshments, there is an on-site cafe.
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Fun singletrack which breaks up the many km's on gravel firetrack road.
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Great trail running along the ridge line overlooking the nature reserve.
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The lakes around Treherbert are primarily located within the surrounding Rhondda Cynon Taf area. Many of these are former industrial sites, such as colliery lands, that have been reclaimed by nature and transformed into scenic country parks with lakes and reservoirs. You'll find a mix of artificial lakes, reservoirs, and natural-feeling bodies of water offering diverse experiences.
Yes, several lakes are great for families. Cwm Clydach Countryside Park features two main lakes, walking trails, and an on-site cafe. Similarly, the Lake at Dare Valley Country Park offers extensive woodlands, playgrounds, a visitor centre with a cafe, and even a Gravity Family Bike Park, making it ideal for active families.
Many lakes in the region have a rich industrial past. Cwm Clydach Countryside Park, for instance, is built atop a former colliery site and includes memorials to victims of the Cambrian Colliery disasters. Dare Valley Country Park also features historical remnants like colliery coal trams and pit winding gear. The Lluest-wen Reservoir Dam Wall itself has a notable history, constructed in 1898 and known for a major leak in 1969.
For tranquil walks and wildlife spotting, Cwm Clydach Countryside Park is an excellent choice, known for kingfishers, herons, butterflies, and newts. Llwyn-on Reservoir, located within the Brecon Beacons National Park, offers a peaceful 5 km circular walking trail amidst mixed woodlands, with opportunities to see otters, great crested grebes, and various ducks.
Yes, the area offers great cycling opportunities. Gravel Roads by Lluest-Wen Reservoir and Wind Farm provides a network of gravel forest roads perfect for covering ground off-tarmac. Dare Valley Country Park also has waymarked trails suitable for cycling and a dedicated Gravity Family Bike Park. For more extensive routes, consider exploring the Gravel biking around Treherbert or MTB Trails around Treherbert guides.
The View of Llyn Fawr from the Skyline Trail offers panoramic views, and on a clear day, you might even glimpse Pen y Fan, the highest peak in the Brecon Beacons. The gravel roads near Lluest-Wen Reservoir also provide expansive views across the moorland.
Yes, both Cwm Clydach Countryside Park and Dare Valley Country Park have on-site cafes. It's always a good idea to check their opening times before your visit.
Llwyn-on Reservoir is a popular spot for anglers, stocked with rainbow trout and wild brown trout. It's advisable to check local regulations and permit requirements before planning a fishing trip.
Cwm Clydach Country Park offers accessible paths, making it suitable for various fitness levels and potentially for those with mobility considerations. However, paths at Dare Valley Country Park can sometimes be wet and boggy, so appropriate footwear is recommended.
At Llwyn-on Reservoir, during dry spells when water levels are low, you might be able to see the ancient Pont ar Daf bridge, which is usually submerged. This offers a unique glimpse into the area's history and changing landscape.
You'll find a variety of hiking trails. Cwm Clydach Country Park offers walking trails suitable for different fitness levels. Dare Valley Country Park has waymarked trails through woodlands and moorland. Llwyn-on Reservoir features a 5 km circular trail. For more challenging options, consider exploring the Waterfall hikes around Treherbert guide, which includes routes like the Pen-pych Waterfall trail.


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