Best Scenic Place in Torfaen, Wales

The Blue Lagoon near Llangattock, in the Brecon Beacons National Park in Wales, is a striking flooded quarry that has become one of the region's most talked-about natural swimming spots. Situated in the hills above the village of Crickhowell in Powys, the site occupies a former limestone quarry that over decades has filled with rainwater and groundwater to create a vivid, turquoise-tinted pool. The intense colour of the water — which gives the site its evocative name — is caused by high concentrations of calcium carbonate and elevated pH levels in the water, a result of the surrounding limestone geology. This same chemistry is the reason visiting authorities repeatedly warn the public that the water, despite its visually stunning appearance, is unsafe for swimming. The alkaline water can cause skin irritation, eye damage, and other health effects, and the site is periodically visited by environmental officers who issue warnings and, at times, close the area to bathers. The quarry itself has a long industrial history, having been worked for limestone extraction that was a cornerstone of the local economy across the nineteenth and early twentieth centuries. The Llangattock escarpment and the surrounding hillsides contain numerous quarry workings, lime kilns, and old tramways that once carried stone down to the Monmouthshire and Brecon Canal in the valley below. When active quarrying ceased, the excavated pits gradually filled with water. The transition from industrial scar to accidental beauty spot happened slowly and without design — nature reclaiming the wound in the hillside in its own distinctive way, producing a landscape that feels both eerie and magnificent at once. The quarrying heritage of this escarpment is significant enough that remnants of the old tramroads and kilns are considered historically important features of the wider landscape. In person, the Blue Lagoon is a visually arresting place. The water genuinely does glow with an almost unnatural cyan or teal brilliance on a sunny day, drawing inevitable comparisons with the famous geothermal lagoon in Iceland, though the Welsh version is rather more modest in scale and considerably colder. The quarry walls rise steeply around much of the pool, their pale grey limestone faces streaked with mineral deposits and colonised in places by hardy ferns and mosses. The atmosphere can shift dramatically with the weather — on a bright summer day the pool shimmers and the surrounding rocks feel warm underfoot, while on overcast days the water turns greyer and the abandoned quarry takes on a more melancholy, post-industrial character. Sound in the bowl of the quarry is curious and enclosed; wind often drops away and the drip of water from the rock faces carries clearly across the still surface. The surrounding landscape places this spot firmly within the dramatic scenery of the Brecon Beacons. The Llangattock escarpment stretches along the ridge above Crickhowell, a long wall of carboniferous limestone that is riddled with cave systems underground — including parts of the extensive Ogof Agen Allwedd cave network, one of the longest cave systems in Britain, which runs beneath the hillside. Views from the higher parts of the escarpment look out across the Usk Valley, with the market town of Crickhowell visible below and the bulk of the Black Mountains rising beyond. The Monmouthshire and Brecon Canal runs along the valley floor and offers pleasant towpath walking. Crickhowell itself is a charming small town with independent shops, pubs, and cafes, and makes an excellent base for exploring the area. Getting to the Blue Lagoon requires a walk from the surrounding road network, which adds to the sense of mild adventure and helps explain why the spot has become popular with hikers and wild swimmers despite the health warnings. Walkers typically approach from the lanes above Llangattock village, following footpaths up onto the escarpment. The terrain is rocky and can be muddy, so appropriate footwear is advisable. Parking is limited in the area and visitors should be mindful of not blocking farm access. There is no formal visitor infrastructure at the lagoon itself — no toilets, no lifeguard, no café — and the remote, unwatched nature of the site is both part of its appeal and a factor in the risks it carries. The best weather for visiting in terms of the visual impact of the water colour is a bright, sunny day, though genuinely warm weather also brings the largest crowds of people tempted to swim despite the warnings. One of the most fascinating and somewhat paradoxical aspects of the Blue Lagoon is the way its very danger is part of what makes it compelling. Local and national authorities have periodically dyed the water black in an attempt to deter swimmers by removing the visual appeal, only for the colour to fade and visitors to return. The site occupies a curious cultural space — beloved and photographed by thousands, featured on social media and travel blogs as a hidden Welsh gem, yet officially and consistently flagged as unsafe. It represents a broader tension between public access to wild and beautiful places and the duty of care that authorities feel toward visitors who may not fully appreciate the invisible risks that lurk behind an appealing surface. For those who visit simply to look, photograph, and absorb the peculiar atmosphere of a flooded industrial ruin glowing improbably turquoise in the Welsh hills, it remains a genuinely memorable and unusual destination.

Garn Lakes is a small network of upland lakes nestled within the Brecon Beacons National Park in South Wales, situated at an elevation that offers sweeping views across the surrounding moorland and valley systems. The lakes sit within the area broadly known as the Mynydd Llangynidr plateau, a vast and ancient expanse of high ground that straddles the boundary between the old counties of Breconshire and Monmouthshire. The coordinates place this location in the vicinity of Beaufort and Tredegar to the south, and the broader uplands that form the northern rim of the South Wales coalfield. The lakes themselves are relatively modest in scale but possess a genuine wild quality that sets them apart from more manicured or heavily visited water bodies in the region. They are part of a landscape that rewards those willing to make the journey on foot across open, sometimes boggy terrain. The geological setting is characteristic of the Brecon Beacons uplands, where Old Red Sandstone gives way to carboniferous limestone in certain zones, and the plateau surface is pitted and shaped by glacial action from the last Ice Age. The lakes, like others scattered across the Mynydd Llangynidr plateau, likely occupy hollows and depressions carved or deepened by glacial processes, and the acidic, peaty soils of the surrounding moorland feed them with slow, tannin-stained water. This gives the lakes a dark, reflective quality on overcast days, while on bright days they can shimmer with surprising vividness against the bleached grasses and purple heather of the moorland. The plateau as a whole is riddled with fascinating geology, including cave systems and limestone pavements, and the Garn Lakes area is embedded within this broader landscape of geological interest. Visiting the Garn Lakes in person is an experience defined by a sense of openness and exposure. The sound environment is dominated by wind moving across open ground, the calls of upland birds such as red kite, skylark, and curlew, and in wetter seasons the soft sounds of water moving through saturated ground. There are no trees to speak of in the immediate area, and the horizon in every direction is a long, rolling line of moorland. The light on the plateau changes rapidly with the weather, and the lakes can shift from glassy calm to wind-rippled within minutes as fronts move in from the west. In summer the heather creates a purple blush across the higher ground, while in winter the area takes on a monochrome severity that is beautiful in its own austere way. The broader area surrounding Garn Lakes is rich in historical and archaeological interest. The Mynydd Llangynidr plateau is known for its Bronze Age cairns, standing stones, and other prehistoric remains, indicating that humans have used this upland landscape for thousands of years, likely for grazing, ritual activity, and as routeways across the mountains. The town of Tredegar lies to the south, a settlement whose history is deeply entwined with the coal and iron industries of the nineteenth century, and the contrast between the industrial valleys below and the wild plateau above is one of the defining features of this part of Wales. The Brecon Beacons National Park designation, which covers this area, recognises both its natural beauty and its cultural significance. For practical purposes, access to the Garn Lakes typically involves walking from nearby road access points on or near the plateau. The B4560 road that crosses the Mynydd Llangynidr plateau is one of the main arteries for reaching the upland, and from various lay-bys and informal parking spots along this road it is possible to walk across open moorland to the lakes. The terrain can be boggy and navigationally challenging in poor visibility, and appropriate footwear, waterproof clothing, and map-reading skills are advisable. The area is largely open access land under the Countryside and Rights of Way Act 2000, meaning walkers have the legal right to roam across the open moorland. There is no formal visitor infrastructure such as toilets or cafes in the immediate area, so visitors should be self-sufficient. The best time to visit is generally late spring through early autumn, when the days are long, the ground is firmer, and the wildlife is at its most active. However, the plateau has a reputation for sudden weather changes, and mist can descend rapidly even in summer, so preparation is essential regardless of season. Autumn can offer particularly atmospheric conditions, with low mist settling over the lakes and the moorland vegetation taking on warm amber and russet tones. Winter visits are for experienced and well-equipped walkers only, as conditions can become severe. The remoteness of the site is arguably its greatest asset, offering a genuine sense of wilderness within striking distance of the densely populated valleys of South Wales, and for those seeking solitude and an unmediated encounter with upland Welsh landscape, the Garn Lakes deliver something quietly extraordinary.