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United Kingdom
Wales
South Wales
Rhondda Cynon Taf

Maerdy

Top 20 Natural Monuments around Maerdy

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.

Best natural monuments around Maerdy

  • The most popular natural monuments is Sgwd Yr Eira, a waterfall that tumbles over a 15.2-meter tall cliff. Visitors can walk behind this waterfall, offering a unique experience.
  • Another must-see spot is Sgwd Gwladus Waterfall, a waterfall formed where the Afon Pyrddin drops 6 meters over a sandstone lip. This waterfall is known for its natural amphitheater and is a suitable spot for picnics.
  • Visitors also love Sgwd Uchaf Clun-Gwyn Waterfall, a viewpoint comprising two sets of falls, with the upper falls thundering into the River Mellte. The lower falls are a series of cascades flowing into a steep gorge.
  • Maerdy is known for its waterfalls, reservoirs, and river valleys. The area offers a variety of natural monuments to see and explore, from dramatic cascades to tranquil water bodies.
  • The natural monuments around Maerdy are appreciated by the komoot community, with more than 500 upvotes and over 350 photos shared.

Last updated: July 1, 2026

Sgwd Yr Eira

Highlight • Waterfall

Sgwd Yr Eira is the star attraction of the Brecon Beacons' much-loved 'Waterfall Country' walk. Meaning 'fall of snow' in Welsh, it tumbles over the 50 foot (15.2 m) tall cliff like a beautiful veil of water. What makes the waterfall so special is that you can walk behind it for a truly incredible thing to experience. Do take care when walking behind the falls, though, as the path is rocky, wet and slippery. Make sure you have decent walking boots and waterproofs.

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Sgwd Uchaf Clun-Gwyn Waterfall

Highlight • Viewpoint

The first waterfall most hikers encounter when exploring 'Waterfall Country' in the Brecon Beacons is Sgwd Uchaf Clun-Gwyn, meaning ‘upper fall of the white meadow’. Comprising two sets of falls, a few hundred metres apart, the upper falls are the highest and thunder dramatically into the River Mellte below. The lower falls are a picturesque series of cascades that flow into the steep gorge below.

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Sgwd y Pannwr

Highlight • Waterfall

Sgwd y Pannwr - 'fall of the fuller' or 'fall of the woollen washer' in Welsh - is the lowermost of the three much-loved falls on the Mellte. Like something from a Jungle Book scene, this waterfall is as dramatic as it is beautiful.

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Sgwd Gwladus Waterfall

Highlight • Waterfall

This is just a beautiful walking area. If you do the 'full' 20km waterfall walk you can take in most of the waterfalls in this area that are on the rivers Mellte, Hepste and Nedd Fechan. You can start at a variety of points around the route that has car parking namely Ystradfellte, Porth Yr Ogof or Pontneddfechan. Otherwise just do the best sections of the walk. For full details of the route click here: komoot.com/tour/257832316

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Pen-Pych Waterfall

Highlight • Viewpoint

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.

(ohwhataknight.co.uk/blog/pen-pych-mountain-and-waterfall-hike-guide)

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Tips from the Community

Stefan G.
June 15, 2026, Sgwd Gwladus Waterfall

Impressive waterfall. You can also walk well underneath it.

Translated by Google

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Clive G
October 31, 2025, Sgwd y Pannwr

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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Bumble-Bee
December 30, 2024, Pen-Pych Waterfall

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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David Howells
February 19, 2024, Sgwd Yr Eira

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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David Howells
February 11, 2024, Sgwd Yr Eira

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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Frequently Asked Questions

What are the primary natural monuments located directly within Maerdy?

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.

Are there family-friendly natural monuments and walks around Maerdy?

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.

What kind of walking trails can I find near Maerdy's natural monuments?

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.

What are some of the most impressive waterfalls near Maerdy?

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.

Can I go mountain biking near the natural monuments in Maerdy?

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.

What is the best time of year to visit the natural monuments around Maerdy?

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.

Are there any historical aspects associated with Maerdy's natural monuments?

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.

What should I wear when visiting the waterfalls near Maerdy?

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.

Are there easy walks to natural monuments in the Maerdy area?

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.

What geological features are prominent in the natural monuments around Maerdy?

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.

Where can I find parking when visiting natural monuments near Maerdy?

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.

What do visitors enjoy most about the natural monuments around Maerdy?

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.

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