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United Kingdom
Wales
South Wales
Carmarthenshire

Myddfai

Top 5 Lakes around Myddfai

Best lakes around Myddfai are found in Carmarthenshire, Wales, a region known for its natural beauty and rich folklore. The area features significant water bodies, particularly those tied to the legend of the Lady of the Lake. These include glacial lakes nestled within the Black Mountain escarpment and a large reservoir offering outdoor activities. The landscape provides rugged beauty and opportunities for hiking and scenic views.

Best lakes around Myddfai

  • The most popular lakes is Llyn y Fan Fach,…

Last updated: May 2, 2026

Fan Brycheiniog summit and stone shelter

Highlight • Summit

Poised and elegant, Fan Brycheiniog is the climax of a striking escarpment edge in the Black Mountain range of the western Brecon Beacons. From sculpted valleys to pretty tarns, the …

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Picws Du, or Bannau Sir Gaer, is the highest point of the dramatic escarpment high above Llyn y Fan Fach. Due to the remote and untouched landscape, you may have …

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Llyn y Fan Fach

Highlight • Viewpoint

Llyn y Fan Fach is a beautiful lake situated below the Black Mountain escarpment. You can reach the lake within short walking distance from the Llyn y Fan Fach car …

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Llyn y Fan Fawr

Highlight • Natural Monument

Llyn y Fan Fawr is a natural lake at the foot of Fan Brycheiniog. There's a lovely route that incorporates both Llyn y Fan Fawr and Llyn y Fan Fach, …

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Usk Reservoir

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A brilliant track around the reservoir. Doable on on most bikes with 35mm+ wheels.

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Popular around Myddfai

Road Cycling Routes around Myddfai

Cycling around Myddfai

MTB Trails around Myddfai

Running Trails around Myddfai

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Kinga
February 14, 2025, Picws Du Summit & View of Llyn y Fan Fach

https://hoofhike.com/

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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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Ahhhh Llyn Y Fan Fawr, this glaciated lake is about the nicest place you can be on a hot summers day or even a cold winter's morning. It has been central to my working life in the hills for nearly forty years. It is just so perfectly locacted and makes for a good check point with groups, a rest spot, a camping spot and a perfect wild swimming spot on a hot day. Don't listen to the naysayers, this has been an iconic wild swimming spot for eons. Apart from that it will be a tad cold, it is just about one of the best swim spots in the Brecon Beacons.

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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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Frequently Asked Questions

What are the most popular lakes to visit around Myddfai?

The most popular lakes include Llyn y Fan Fach, known for its stunning beauty and the legend of the Lady of the Lake, and Llyn y Fan Fawr, offering dramatic mountain scenery. For a more accessible experience, Usk Reservoir is a family-friendly option with a track suitable for walking or riding.

Are there family-friendly walking routes around the lakes near Myddfai?

Yes, Usk Reservoir is particularly family-friendly, featuring a track around its perimeter that is suitable for easy walking or riding. While the walk to Llyn y Fan Fach can be an uphill slog, it's a popular five-mile walk that many families enjoy for the stunning views.

What kind of outdoor activities can I do near the lakes around Myddfai?

The area offers extensive opportunities for outdoor activities. You can enjoy hiking, cycling, and mountain biking. For cycling, explore routes like the 'Trecastle and Myddfai loop from Usk Reservoir' found in the Cycling around Myddfai guide. Mountain biking enthusiasts can check out the 'Usk Reservoir and Glasfynydd Forest loop' in the MTB Trails around Myddfai guide. Running is also popular, with routes like the 'Usk Reservoir running loop' available in the Running Trails around Myddfai guide.

What historical or legendary significance do the lakes near Myddfai hold?

The lakes, especially Llyn y Fan Fach, are deeply rooted in Welsh folklore. It is famously associated with the ancient legend of the 'Lady of the Lake,' a magical woman who emerged from its waters. Her sons became the fabled Physicians of Myddfai, adding a profound sense of magic and history to the location.

Are there good viewpoints around the lakes for photography?

Absolutely. The summit of Picws Du offers amazing views across Llyn y Fan Fach and the valley. Similarly, from the Fan Brycheiniog summit, you can get spectacular views down onto Llyn y Fan Fawr and the rugged landscape, especially on a clear day.

What is the best time of year to visit the lakes near Myddfai?

The lakes offer beauty year-round. While a hot summer's day is ideal for activities like wild swimming at Llyn y Fan Fawr, the 'otherworldly' atmosphere of Llyn y Fan Fach makes it a compelling visit regardless of the weather, even on a cold winter's morning. The views over the lake on a sunny day or sunset are particularly magical.

Is wild swimming permitted in any of the lakes?

While swimming has been discouraged by recent signs at Llyn y Fan Fach, Llyn y Fan Fawr has been described by visitors as an iconic wild swimming spot for ages, perfect on a hot day. Be aware that the water can be quite cold.

Where can I park when visiting the lakes?

There is a car park near Llyn y Fan Fach, though it is small and can get busy. The roads leading to it can be tight, so drive slowly. For Usk Reservoir, there are parking areas available to access the perimeter track.

What natural features characterize the area around Myddfai's lakes?

The region is characterized by its rugged river landscapes and the surrounding Tywi Forest. The lakes themselves are often glacial, nestled beneath dramatic escarpments like the Black Mountain within the Brecon Beacons National Park. You'll find deep, cold waters, and stunning panoramic views of the surrounding mountains.

Are there any long-distance hiking routes that incorporate multiple lakes?

Yes, Llyn y Fan Fawr is often incorporated into longer hiking routes that also include Llyn y Fan Fach. These routes offer an expansive wilderness experience and allow you to explore the dramatic mountain scenery of the Black Mountain range.

What do visitors enjoy most about the lakes around Myddfai?

Visitors frequently praise the breathtaking scenery, the sense of mystique from the folklore, and the opportunities for outdoor adventure. The 'otherworldly' atmosphere of Llyn y Fan Fach and the dramatic mountain views from peaks like Fan Brycheiniog are often highlighted. Many also appreciate the peacefulness and the chance to immerse themselves in nature.

Can I cycle around any of the lakes?

Yes, Usk Reservoir features a brilliant track around its perimeter that is suitable for cycling, even with bikes with 35mm+ wheels. It offers an easy route for riding and picturesque vistas.

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