Lakes around Llanddeusant are set within the scenic Welsh landscape, offering access to notable natural and glacial lakes. The area is characterized by wild mountain massifs and dramatic escarpments, particularly within the Black Mountain range of the Brecon Beacons. This region provides opportunities for exploring diverse aquatic environments, from high-altitude glacial tarns to larger reservoirs. Local folklore adds a layer of cultural interest to the natural surroundings.
Last updated: August 10, 2026
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Popular around Llanddeusant
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Hiking around Llanddeusant
MTB Trails around Llanddeusant
Running Trails around Llanddeusant
Road Cycling Routes around Llanddeusant
Cycling around Llanddeusant
Tucked away in a dreamy, isolated location in the upper Swansea Valley, Craig-y-nos Country Park is a gorgouous 40-acre park that was once owned by Adelina Patti. Now it is a Victorian garden set in woodlands, surrounded by meadows and ponds, dissected by the River Tawe. It is in a gorgeous location, and there is a great cafe there to boot.
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The views down onto Llyn Y Fawr from here is pretty spectacular. This is one of the nicest places in the Brecon Beacons to walk along. Once you have put in the effort to get here, the ridge has a good footpath, there's a nice walled shelter and the views down towards the lake is pretty awesome on a good day.
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A quieter route that leads to the lake. Beautiful and challenging. ideal for all weathers.
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Fan Brycheiniog is the highest peak at a height of 802.5 metres in the Black Mountain region of the Brecon Beacons National Park in southern Wales. There is a trig point at the peak and on the edge of the escarpment, and nearby, a stone shelter with an inner seat.
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Fan Brycheiniog is the highest peak at a height of 802.5 metres in the Black Mountain region of the Brecon Beacons National Park in southern Wales. There is a trig point at the peak and on the edge of the escarpment, and nearby, a stone shelter with an inner seat.
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Llyn y Fan Fawr is a natural lake in the county of Powys, Wales. It lies at the foot of Fan Brycheiniog, the highest peak of the Black Mountain range within the Brecon Beacons National Park. Created as a result of glacial action, it is one of the largest glacial lakes in southern Wales. The lake is roughly rectangular in shape with its long axis oriented roughly north–south.
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Picws Du is the second highest peak of the Carmarthen Fans in the Carmarthenshire section of the Black Mountain in the west of the Brecon Beacons National Park in south Wales.Picws Du is formed from the sandstones and mudstones of the Brownstones Formation of the Old Red Sandstone laid down during the Devonian period. Its summit and southern slopes are formed from the hard-wearing sandstones of the overlying Plateau Beds Formation which are of upper/late Devonian age.
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The lakes around Llanddeusant are set within a scenic Welsh landscape characterized by wild mountain massifs, dramatic escarpments, and glacially sculpted terrain. You'll encounter beautiful glacial lakes like Llyn y Fan Fach and natural tarns such as Llyn y Fan Fawr, often overlooked by peaks like Fan Brycheiniog. Further afield, Llyn Brianne offers dramatic reservoir scenery with the UK's tallest dam.
Yes, Llyn y Fan Fach is steeped in local folklore, particularly the legend of 'the Lady of the Lake,' adding a mystical layer to its natural charm. Additionally, Craig-y-Nos Country Park features a Grade II-listed castle that was once owned by the legendary opera singer Adelina Patti.
For challenging ridge walks with incredible views, consider the routes around Llyn y Fan Fach and Llyn y Fan Fawr, which can be combined into a single route. The area around Llyn Brianne also offers excellent opportunities for hiking with picturesque water views. For gentler paths, Craig-y-Nos Country Park provides delightful walks around its picturesque lakes.
Yes, Craig-y-Nos Country Park is an excellent family-friendly option with 40 acres of gentle paths, woodlands, meadows, and ponds to explore. It also has a cafe on-site. For slightly older children, the short walk to Llyn y Fan Fach from its car park can be a rewarding adventure, though it involves an uphill section.
Many areas around the lakes are dog-friendly, especially for walks. Craig-y-Nos Country Park is particularly welcoming to dogs, with acres of fields. When hiking in the wider Black Mountain area, always keep dogs under close control, especially near livestock, and follow local guidelines.
The lakes are beautiful year-round, but spring and summer offer the most pleasant weather for hiking and outdoor activities. Autumn brings stunning foliage. Winter can be dramatic and beautiful, but conditions can be challenging with colder temperatures and potential for snow, requiring appropriate gear and experience.
Yes, Llyn y Fan Fawr is known as an iconic wild swimming spot. While refreshing on a hot day, be aware that the water can be very cold. Always exercise caution, be aware of water conditions, and prioritize safety when wild swimming.
For Llyn y Fan Fach, there is a car park at the bottom of the track leading to the lake, though it can get busy. For other lakes and trailheads, parking availability varies, and it's advisable to check specific route details before your visit. Llyn Brianne also has designated parking areas.
Beyond hiking, the region offers excellent opportunities for running and cycling. You can find various routes, including the 'Usk Reservoir running loop' for jogging, and several road cycling and touring bicycle routes around Llanddeusant. Explore more options in the Running Trails around Llanddeusant, Road Cycling Routes around Llanddeusant, and Cycling around Llanddeusant guides.
Absolutely. The Fan Brycheiniog summit offers incredible views of the rugged, glacially sculpted landscape, including Llyn y Fan Fawr. Similarly, Picws Du summit provides amazing views across Llyn y Fan Fach and the surrounding valley.
While the immediate vicinity of some remote lakes like Llyn y Fan Fach is wild, areas like Craig-y-Nos Country Park offer a cafe and are close to accommodation options. The nearby towns and villages around Llanddeusant and Llandovery will provide a wider range of cafes, pubs, and places to stay.
Trail difficulties vary. The walk to Llyn y Fan Fach involves an uphill trek, rated as intermediate. Ridge walks connecting Fan Brycheiniog and Picws Du are generally considered challenging due to elevation and terrain. Craig-y-Nos Country Park offers much gentler, easy walks.


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