Best lakes around Llyn Brenig include the significant reservoir situated on the Denbigh Moors in North Wales. This artificial lake, constructed between 1973 and 1976, is the fourth largest in Wales by surface area, covering 920 acres (3.7 square kilometers). It lies at an altitude of 1,200 feet (370 meters) above sea level, providing views of the surrounding landscape. The reservoir plays a role in maintaining water flow to the River Dee and supplying water to North-East Wales and North-West…
Last updated: May 13, 2026
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Though it was not a tough or technical ride, it did take me into territory I had never visited before and was a lovely antidote to the 'fleshpots' of Gwydir Forest or Coed-y-Brenin. Some lovely gentle singletrack, beautiful views and I didn't see another rider for the whole trip - although tbh I did set off at 08.30 on a Wednesday!!
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Llyn Brenig is a reservoir located on Denbigh Moors in North Wales. The artificial lake, which was constructed between 1973 and 1976, was created by building an embankment dam across the Afon Brenig valley. It lies at 1,200 ft (370 m) above sea level on the border between the counties of Conwy and Denbighshire. It is used to manage the flow in the River Dee as part of the River Dee regulation system.
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Llyn Brenig is a reservoir located on Denbigh Moors in North Wales. The artificial lake, which was constructed between 1973 and 1976, was created by building an embankment dam across the Afon Brenig valley. It lies at 1,200 ft above sea level on the border between the counties of Conwy and Denbighshire.
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A long and winding doubletrack gravel road that flanks the eastern shore of Llyn Brenig. It's a little rough in places so best on a gravel bike, sturdy hybrid or mountain bike rather than a pure road bike. Enjoy the views as you meander around the little inlets and see what wildlife you can see across the water.
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You can find some glorious views here on the edge of Llyn Brenig. Llyn is Welsh for lake. The dam is fairly recent; it was begun in 1973 and finished in 1976. It maintains the flow of water to the River Dee, not to be confused with the river of the same name in Aberdeenshire. The water supplied by this reservoir feeds into North-East Wales and North-West England, including the Liverpool area.
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Llyn Brenig offers a wide range of outdoor activities. It's renowned for world-class fly-fishing and pike fishing. You can also enjoy walking and cycling on 14 miles of shoreline trails, with bike hire available on-site. Watersports like paddleboarding, kayaking, canoeing, sailing, and open-water swimming are popular during summer. For a unique experience, try the sauna and cold water dipping.
Yes, Llyn Brenig is very family-friendly. There are gentle trails suitable for all ages, and the visitor center offers an osprey exhibition that children often enjoy. Watersports like paddleboarding and kayaking are also great for families. The main area of Llyn Brenig is noted as family-friendly.
Llyn Brenig is excellent for wildlife spotting. It's a summer breeding ground for a rare pair of ospreys, which can be observed via a live feed at the visitor center or from dedicated lookouts. There are also several bird hides for bird watching. The diverse landscape, including the wild heather on the slopes of Marial Gwyn and the Clocaenog Forest, supports various other wildlife.
Yes, Llyn Brenig offers numerous cycling opportunities. The 14 miles of shoreline trails are suitable for various abilities, from family rides to more challenging routes extending into Clocaenog Forest. Bike hire is available at the visitor center. For more detailed routes, you can explore Road Cycling Routes around Llyn Brenig or Traffic-free bike rides around Llyn Brenig.
The area around Llyn Brenig offers spectacular views due to its altitude of 1,200 feet (370 meters). The main Llyn Brenig viewpoint provides glorious vistas. The East Shore Gravel Track also offers beautiful views as you meander around the lake's inlets. On clear days, you can even see the Clwydian hills and the sea towards Prestatyn.
Yes, several archaeological trails are located on the north-west side of the reservoir. These trails allow visitors to explore ancient burial and ceremonial monuments, offering a glimpse into the region's past.
Llyn Brenig features a comprehensive visitor center. It includes a café with lake views, a gift shop, and an osprey exhibition. The center also provides information about trails, local flora, and fauna, and has facilities for meetings. Bike hire and a fishing shop for permits and tackle are also available.
Absolutely. The trails around Llyn Brenig are suitable for running. You can find various options, from shorter loops to longer routes. For specific running trails, check out the Running Trails around Llyn Brenig guide.
Yes, Llyn Brenig is an artificial lake. It was constructed between 1973 and 1976 by building an embankment dam across the Afon Brenig valley. It serves to manage the flow in the River Dee as part of the River Dee regulation system and is the fourth largest lake in Wales by surface area.
The best time to visit Llyn Brenig depends on your preferred activities. Summer months are ideal for watersports like paddleboarding and open-water swimming. Spring and autumn offer pleasant temperatures for walking and cycling, with beautiful seasonal foliage. Osprey viewing is best during their summer breeding season. Fishing is popular year-round, with specific seasons for trout and pike.
Yes, open-water swimming is an activity available at Llyn Brenig during the summer months. For those seeking a unique wellness experience, the lake also offers a sauna and cold water dipping, often referred to as Viking Bathing.


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