Best natural monuments around Cynwyd offer diverse natural landscapes, characterized by mountainous terrain and significant water features. This region provides opportunities for exploring summits, river valleys, and waterfalls. The area is known for its natural beauty and geological formations, making it a destination for outdoor activities.
Last updated: July 1, 2026
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The Llantysilio Green weir, more commonly known as the Horseshoe Falls, is a 140-meter-long, horseshoe-shaped weir designed by Thomas Telford in 1808 to divert water from the River Dee into the Llangollen Canal. This prominent structure is a significant piece of engineering and a feature of the World Heritage Site, providing water for the canal and attracting tourists with its unique design and surrounding landscape. The Llantysilio Green Car Park is a designated access point for visiting the falls. In the late 19th century a long piece of wood, about 30cm wide, floated on the water here to deflect floating debris away from the canal intake. It was fixed at one end. It’s visible in the photo, taken c.1890. Some trippers couldn’t resist the temptation to walk along it, ignoring a warning sign nearby, if they weren’t spotted by the “waterman” in charge of the sluice. Local residents took a dim view of such “unheeding folly”. 😂😂
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The loop from Llandrillo going anticlockwise is very steady and pleasant. But be prepared for substantial bog trotting in the central part of the valley passing the area marked as Gwern Wynodl. Even with newish goretex boots, we came away with wet feet. Good boots and gaiters, or wellies for that section highly recommended. Return section (first section if doing it clockwise) is also pretty boggy in parts. It also seemed like a bit more of a slog doing it clockwise.
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Located on the River Dee, near to Llantysilio, this masterpiece of Thomas Telford Engineering is where the Pontcysllte Aqueduct and Canal World Heritage site begins. He designed this weir to draw water from the River Dee in to the canal, and it became a stunning addition to the landscape. At 460ft (140M) long, it’s a sight to behold.
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Fantastic views of the waterfall and various walks around this area
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The distinctively shaped weir, which is 460 feet (140 m) long, helps create a pool of water that can enter the Llangollen Canal (via an adjacent valve house and flow meter). The canal west of Pontcysyllte Aqueduct and the construction of the weir were authorised by an Act of Parliament obtained in 1804 by the Ellesmere Canal Company. The canal was a navigable feeder, which supplied water to the Ellesmere Canal beyond Pontcysyllte, and to the Chester Canal, to which it connected near Nantwich. Thomas Telford was the civil engineer responsible for the design, and the canal and feeder were completed in 1808.
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At 240ft (80m) high it is Britain's tallest single-drop waterfall, captivating all who visit her. Generation after generation take in the spirit and presence of this special place. Many mention how quickly they find peace and reverence within themselves, seldom found in our busy and fragmented world.
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Lovely spot with a sneaky path back towards Llangynog if you cross the waterfall
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The guide highlights several notable natural monuments. Among the most popular are Horseshoe Falls, a unique 140-meter-long weir on the River Dee, and Pistyll Rhaeadr, one of Wales' tallest waterfalls. For those seeking panoramic views, Cadair Bronwen Summit Cairn offers impressive vistas from its 784-meter peak.
Yes, Horseshoe Falls is categorized as family-friendly, offering an accessible and interesting site to visit. Additionally, Pistyll Rhaeadr, while set in a wooded gorge, has an easy stroll from the car park to the base of the waterfall, making it suitable for families.
You'll encounter a diverse range of natural features. These include significant water formations like the impressive Pistyll Rhaeadr waterfall and the powerful currents at the River Rapids Access Point. The region also features mountainous terrain with prominent summits such as Cadair Bronwen Summit Cairn and Moel Fferna, offering expansive views.
The area around Cynwyd offers excellent opportunities for outdoor activities. You can find numerous hiking routes, including moderate trails like the "Corwen Reservoir – Corwen Town Square loop from Cynwyd" or more challenging options such as the "Corwen Reservoir – Moel Fferna loop from Corwen." For cyclists, there are road cycling and touring bicycle routes, including scenic loops around Llyn Tegid (Bala Lake) and the Dee Valley. You can explore more options on the Hiking around Cynwyd, Road Cycling Routes around Cynwyd, and Cycling around Cynwyd guide pages.
Yes, the region is well-suited for hiking. For instance, the area around Cadair Bronwen Summit Cairn offers a loop from Llandrillo, though parts can be boggy. You can find various hiking routes, from moderate to difficult, starting near Cynwyd. For detailed trail information, refer to the Hiking around Cynwyd guide.
Visitors frequently praise the spectacular views from summits like Cadair Bronwen Summit Cairn and the wild, natural beauty of places like Pistyll Rhaeadr. The engineering marvel of Horseshoe Falls and the powerful river at the River Rapids Access Point are also highly appreciated for their unique appeal and photographic opportunities.
When planning a visit to summits like Cadair Bronwen Summit Cairn or Moel Fferna, be prepared for varied terrain. Parts of the trails, especially in the central valley near Gwern Wynodl, can be quite boggy, even with good boots. Gaiters or wellies are highly recommended for these sections. The summits offer rewarding views but require appropriate footwear and preparation for potentially wet conditions.
Yes, Horseshoe Falls is a significant man-made monument. It's a 140-meter-long, horseshoe-shaped weir designed by Thomas Telford in 1808 to divert water into the Llangollen Canal. This prominent structure is a key feature of the World Heritage Site and a testament to historical engineering within a natural landscape.
The natural monuments are generally accessible year-round. However, spring and fall offer mild weather and vibrant foliage, making them particularly pleasant for hiking and exploring. During winter, some areas might be more challenging due to boggy conditions, especially on higher trails. For waterfalls like Pistyll Rhaeadr, visiting after rainfall can enhance the spectacle.
Yes, for popular sites like Pistyll Rhaeadr, there is a car park on-site, though it can be small and may close at 5 pm. An alternative parking area is usually available further down the road. For Horseshoe Falls, the Llantysilio Green Car Park serves as a designated access point.
Moel Fferna is a mountain in Denbighshire, Wales, and forms the northernmost outpost of the Berwyn range. At 630 meters (2,070 feet), it is the highest point in the Clwydian Range and Dee Valley Area of Outstanding Natural Beauty. Its summit, covered in deep heather, offers expansive views and features a shelter cairn.
Yes, for instance, Pistyll Rhaeadr has a cafe located near the car park, making it convenient for visitors to grab refreshments. For other locations, especially those in more remote mountain areas, it's advisable to carry your own provisions.


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