Best natural monuments around Llangollen are found within the scenic Dee Valley, part of the Clwydian Range and Dee Valley Area of Outstanding Natural Beauty. This region features dramatic mountains, picturesque waterways, and unique geological formations. The area is characterized by its rugged landscapes and significant natural features. It provides a diverse environment for outdoor activities.
Last updated: May 9, 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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Follow the switch back path to the top. The views are superb.
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The castle was built in 1295 by Roger Mortimer de Chirk, uncle of Roger Mortimer, 1st Earl of March as part of King Edward I's chain of fortresses across the north of Wales, guarding the entrance to the Ceiriog Valley. It was the administrative centre for the Marcher Lordship of Chirkland. The castle was bought by Sir Thomas Myddelton in 1593 for £5,000 (approx. £18 million as of 2024). His son, Thomas Myddelton of Chirk Castle was a Parliamentarian during the English Civil War, but became a Royalist during the 'Cheshire rising' of 1659 led by George Booth, 1st Baron Delamer. Mullioned and transomed windows were inserted in the 16th and 17th centuries; the castle was partly demolished in the English Civil War and then rebuilt. Following the Restoration, his son became Sir Thomas Myddelton, 1st Baronet of Chirke. The castle passed down in the Myddelton family to Charlotte Myddelton (on the death of her father in 1796). Charlotte had married Robert Biddulph, who changed his name to Robert Myddelton-Biddulph, leaving the castle on his death to their son Robert. It then passed down in the Myddelton-Biddulph family.
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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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The area is popular with walkers, cyclists and tourists. The Offa's Dyke Path passes through World's End. World's End lies on a single track road from the small village of Minera near Wrexham, which crosses Esclusham Mountain and the Ruabon Moors to a public car park at the top of the Eglwyseg valley. The road crosses the Eglwyseg River by a ford, then goes on towards Pentre Dŵr, under the Horseshoe Pass, leading eventually to Llangollen or onto the Panorama in Trevor. Near World’s End is the manor house Plas Ucha yn Eglwyseg, built in 1563. It was for a time the home of John Jones Maesygarnedd, one of the signatories of the death warrant for Charles I of England. The building is said to stand on the site of a hunting lodge of Owain ap Cadwgan, prince of Powys, where Owain carried Nest (daughter of Rhys ap Tewdwr) when he stole her away from her husband Gerald de Windsor in 1109.
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I really cant stress how slippy the ford is and wet and painful
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Linear earthwork that runs 176 miles that runs along the border of England and Wales. It was named after King Offa the 8th century ruler of the Kingdom of Mercia. Beautiful spot for photo, very pieceful and a great walk.
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The castle was built in 1295 by Roger Mortimer de Chirk, uncle of Roger Mortimer, 1st Earl of March as part of King Edward I's chain of fortresses across the north of Wales. It guards the entrance to the Ceiriog Valley. It was the administrative centre for the Marcher Lordship of Chirkland.
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Among the most popular natural monuments in the area is Horseshoe Falls, a picturesque weir on the River Dee, known for its distinctive shape and pleasant walks. Visitors also highly rate World's End Road and Ford (Eglwyseg Valley), a scenic trail through woods and moorland, and Moel Fferna, the highest point in the Clwydian Range and Dee Valley Area of Outstanding Natural Beauty, offering panoramic views.
Yes, several natural monuments are great for families. Horseshoe Falls offers leisurely walks along the canal, accessible for pushchairs and wheelchairs. Cup and Saucer Waterfall is another family-friendly spot within Erddig's diverse parkland. Additionally, the grounds of Chirk Castle are very accessible and offer plenty of space for exploration.
Llangollen offers a variety of hiking experiences. The Berwyn Mountains, including Moel Fferna, provide challenging walks with stunning panoramic views. For more moderate options, you can walk along the Llangollen Canal to Horseshoe Falls or explore the trails in the Dee Valley, which include sections of the Offa's Dyke Path. For more detailed routes, check out the easy hikes around Llangollen guide.
Beyond hiking, the River Dee is popular for whitewater rafting and kayaking. You can also take a canal boat trip across the impressive Pontcysyllte Aqueduct or even try kayaking or paddleboarding on the canal itself. For those interested in running or gravel biking, there are dedicated guides available, such as Running Trails around Llangollen and Gravel biking around Llangollen.
Yes, the region beautifully blends natural beauty with history. The Pontcysyllte Aqueduct, a UNESCO World Heritage Site, is a man-made marvel that carries the Llangollen Canal over the River Dee, offering stunning views of the natural valley. Chirk Castle, a 14th-century fortress, is set within 480 acres of estate parkland, which includes a well-preserved section of Offa’s Dyke and is designated a Site of Special Scientific Interest.
The Llangollen Canal, particularly around the Pontcysyllte Aqueduct, is home to diverse wildlife, including kingfishers, herons, and otters. The wider Dee Valley and the estate parkland of Chirk Castle are rich in biodiversity, with rare invertebrates, bats, fungi, and wildflowers, as well as wild ponies and sheep.
The terrain varies significantly. Trails around Horseshoe Falls and along the Llangollen Canal are generally easy and flat. However, ascents to peaks like Moel Fferna in the Berwyn Mountains involve rugged and challenging climbs. The World's End Road and Ford (Eglwyseg Valley) area features a mix of tarmac roads and more exposed moorland, with some rougher sections and a ford to navigate.
Yes, there are several circular walks. For example, you can enjoy a delightful 2-mile walk along the canal from Llangollen Wharf to Horseshoe Falls and return. The Dee Valley also offers numerous trails that can be combined into circular routes, often incorporating sections of the Offa's Dyke Path. Many routes listed in the easy hikes around Llangollen guide are circular.
For breathtaking panoramic views, head to Moel Fferna, the highest point in the Clwydian Range and Dee Valley AONB. Walking across the Pontcysyllte Aqueduct also provides stunning vistas of the surrounding countryside and the Dee Valley. The World's End Road and Ford (Eglwyseg Valley) offers views towards the Dee Valley and Llangollen below, especially on the descent.
Llangollen's natural monuments can be enjoyed year-round, with each season offering a different charm. Spring brings blooming wildflowers, while summer provides warmer weather ideal for water activities and longer walks. Autumn showcases vibrant foliage across the valleys and mountains. Winter offers a serene, often dramatic landscape, though some higher trails may require more preparation due to weather conditions.
Llangollen town itself serves as an excellent base, offering a variety of accommodation options, cafes, and pubs. Many natural monuments, such as Horseshoe Falls, are easily accessible from the town, meaning amenities are never far away. The Dee Valley also has various dining and lodging choices, especially in villages along the main routes.
While the Pontcysyllte Aqueduct is primarily a man-made engineering marvel, it is a UNESCO World Heritage Site that is deeply integrated with the natural landscape of the Dee Valley. Its impressive structure carries the Llangollen Canal over the River Dee, making it a significant feature that complements the natural beauty of the area and is often explored alongside other natural monuments.


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