Best natural monuments around Maerdy include a landscape shaped by the Afon Rhondda Fach and its associated reservoirs. The area features deeply entrenched valleys, upland marshes, and significant water bodies like Lluest Wen Reservoir. These natural features contribute to the region's distinct topography and offer various outdoor exploration opportunities. The region's natural monuments are primarily centered around its river valleys and water features.
Last updated: July 1, 2026
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Impressive waterfall. You can also walk well underneath it.
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The view you are most likely to see is from the top of the falls, to the side. There is a rock shelf that provides a good view for this view. In the summer you will also find people jumping off this shelf into the plunge pool below! There are other views that can be reached down a gully and then along a rough path that takes you to river level.
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Resembling something which should be found in Iceland, Pen Pych waterfall is a series of cascades which tumble over a sheer sided sedimentary rock face. The base of waterfall is enveloped by a half amphitheatre cliffs which only adds to the waterfalls impressive appearance. Theres is no plunge pool at the base of the falls, instead the tallest section spills 21m onto number of boulders which have tumbled from the cliffs above in years gone by. The path will lead you to a large rocky viewing area to the right hand side of the falls beneath the cliffs. You can climb up to the base of the falls, if you do do that take care as the rocks can be very slippery. (https://ohwhataknight.co.uk/blog/pen-pych-mountain-and-waterfall-hike-guide)
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Beautiful waterfall with free parking easy trail up not to hard
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Amazing place. Must visit in vacation. I am so excited to go there. Beautiful waterfall. https://www.my-milestonecard.com
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such a beautiful waterfall. Looks amazing and so peaceful weather. I loved it. https://www.my-milestonecard.com
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Sgwd yr Eira is the most impressive waterfall in the Pontneddfechan area. It is a high, broad, and powerful waterfall that resembles a curtain of water when it is in full flow. The fact that you can walk behind it just adds to the beauty of this amphitheatre you find yourself in. To get there, however, you have to take around 170 steps that go down the steep side of the valley to the river bed. If this worries you somewhat, just take your time when you go down and when you come back up. In addition, at the bottom, the path that goes to the waterfall is rocky and slippery, and if you walk behind the waterfall, it will be a bit wet, so a waterproof might be necessary.
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The Four Waterfalls Walk is my idea of heaven. Hidden away in a quiet corner of the Brecon Beacons, there is a famous waterfall trail that takes in four great waterfalls, it is located near the quaint village of Ystradfellte. The trail has stunning scenery, and the main access to it is from the car park at Porth yr Ogof, or the Cwm Porth car park, to give it its proper name. The Four Waterfalls are all spectacular in their own different ways, and they are Sgwd Clun-Gwyn, Sgwd Isaf Clun-Gwyn, Sgwd y Pannwr, and Sgwd yr Eira.
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Within Maerdy and its immediate vicinity, the main natural monuments are the Lluest Wen Reservoir, the smaller Castell Nos Reservoir, and the Afon Rhondda Fach. These features define the picturesque valley landscape of the area.
Yes, the walk to the Lluest Wen Reservoir and Castell Nos Reservoir is considered family-friendly, with well-maintained paths suitable for pushchairs or bikes. For a unique experience, the Sgwd y Pannwr waterfall, part of the wider Waterfall Country, is also noted as family-friendly.
You'll find a variety of walking trails. The path to the Lluest Wen Reservoir offers a peaceful experience, with a 3-mile round trip to Castell Nos and a longer 6.1-mile option to Lluest Wen. For more extensive hiking, you can explore routes like the 'Rhondda Fach and Lluest-wen Reservoir Loop' or 'Lluest-wen Reservoir – Stone Bridge Over Stream loop from Maerdy'. You can find more details on these and other hiking routes in the Hiking around Maerdy guide.
While some of the most famous waterfalls are a short drive away, they are well worth the visit. The most popular is Sgwd Yr Eira, known for allowing visitors to walk behind its 15.2-meter curtain of water. Another notable one is Sgwd Gwladus Waterfall, which forms a natural amphitheater and is a great picnic spot. Closer to Maerdy, the Pen-Pych Waterfall offers a series of cascades tumbling over a sheer rock face.
Yes, the area around Maerdy offers mountain biking opportunities. Routes such as the 'Lluest-Wen Reservoir – Handy Andy Trail loop' and 'Castell Nos Reservoir – Llanwonno Forest Trail loop' provide varied terrain for mountain bikers. For a comprehensive list of trails, refer to the MTB Trails around Maerdy guide.
The natural monuments, especially the waterfalls, are often most impressive after rainfall, when the water flow is at its fullest. This can make autumn and winter particularly dramatic, though paths can be wet and slippery. Spring and summer offer milder weather for exploring, and Sgwd Gwladus Waterfall is noted as a safe place to swim in the summer. Always check local conditions before your visit.
Yes, the Lluest Wen Reservoir, built in 1898, has historical significance, having gained national attention in 1969 due to damage that led to evacuations. Walking alongside the Afon Rhondda Fach, you can also pass historical elements like the Castell Nos Filter House and the ruins of the Medieval Castell Nos, which once defended the land.
When visiting waterfalls like Sgwd Yr Eira, where you can walk behind the falls, the path can be rocky, wet, and slippery. It's highly recommended to wear decent walking boots and bring waterproof clothing. For Sgwd Gwladus Waterfall, waterproof mid-boots, trousers, and jackets are also important, especially if you plan to go behind the falls where the water can be deep.
Yes, there are several easy walks. The path to Castell Nos Reservoir is an easy 3-mile round trip. Additionally, routes like 'Pen-Pych Waterfall – View of Rhondda Fawr Valley loop from Treherbert' and 'Michael Hewitt Memorial – Rhigos Mountain Fire Roads loop from Llyn Fawr' are classified as easy hikes. More options can be found in the Easy hikes around Maerdy guide.
The region is characterized by deeply entrenched valleys carved by rivers like the Afon Rhondda Fach. Waterfalls like Sgwd Gwladus Waterfall are formed where rivers drop over sandstone lips, and the upper surface of this sandstone can be patterned with fossil roots of ancient trees. Pen-Pych Waterfall cascades over a sheer-sided sedimentary rock face, with a half-amphitheater of cliffs adding to its dramatic appearance.
For the Lluest Wen Reservoir and Castell Nos Reservoir, there are often designated parking areas at the start of the trails. For waterfalls like Pen-Pych Waterfall, free parking is available. If visiting the wider Waterfall Country, there are car parks at locations like Ystradfellte, Porth Yr Ogof, or Pontneddfechan, which is about a 30-minute walk from Sgwd Gwladus Waterfall.
Visitors frequently praise the peaceful and beautiful experiences offered by the reservoirs and river walks. The dramatic cascades and unique features of the waterfalls, such as being able to walk behind Sgwd Yr Eira, are also highly appreciated. The stunning views of blue water and valleys, along with opportunities for picnics, contribute to the overall enjoyment.


Extend your search for the best caves by checking out these guides of the top ones around Maerdy: