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United Kingdom
Wales
Powys

Lake Vyrnwy

The best walks and hikes around Lake Vyrnwy

4.4

(137)

1,248

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13

hikes

Hiking around Lake Vyrnwy offers diverse landscapes, including vast forests of conifer, birch, and oak, alongside rocky crags, rolling hills, and expansive moorland. This man-made reservoir, nestled on the edge of Snowdonia National Park, features numerous rivers, mountain streams, and notable waterfalls like Rhiwargor. The terrain varies from gentle lakeside paths to more challenging routes through woodlands and over hills.

Best hiking trails around Lake Vyrnwy

  • The most popular hiking route is Giants of Vyrnwy – Lake Vyrnwy Dam loop…

Last updated: May 14, 2026

5.0

(2)

21

hikers

#1.

Lake Vyrnwy and Dam – Lake Vyrnwy Dam loop from Abertridwr

6.92km

01:55

120m

120m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Tips from the Community

Bunterchild
September 18, 2025, RSPB Recent Bird Sightings Board

The RSPB centre keeps a board of all the recent birds sighted in the area.

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This is a safe little pebble beach for your dog to go and have a swim.

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Gorgeous area. Be aware the road/trail on the south side (including access to/from Llanymawddwy) are currently closed due to damage from storm Darragh. See https://www.hdcymru.co.uk/our-visitor-sites/lake-vyrnwy/storm-darragh/ for more details.

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Felled Then Sculpted into a hand in legacy of the once was the tallest tree in the UK! Stood at then 147m in all her glory unfortunately from a storm in 2010. Where March 2011 they had stumped it to 50m then autumn 2011 the awesome absolutely incredible sculpture of a hand represents storm had damaged the actual douglas fur that bad that it had to be felled at 50m for safety of numerous accounts in that area as the devastation if left to fall on its own I imagine that it would have and could have been catastrophic and unbelievable to even think on, as it would no doubt have touched the lake itself if was left and In process ripping down many of the surrounding small giants that grew in that part of the forest. I would have loved to have seen what the actual tree looked like in all her prime of height but ive not managed to find anything yet my search continues 2years on. I felt a huge hit of the most hardcore feeling of emotion. I felt a sense of link and connection with the whole ethos in the giants and the trail that’s left still today, I’ve never looked at a single tree in the same ever since. Please everyone take extra care whilst you’re here as there’s been issues recently with vandalism and even cutting the surrounding areas illegally that is a protected area and it’s not a place that usually has fallen into a victim of crimes but it is and it has rubbish is to be taken home

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embee999
September 26, 2024, Lake Vyrnwy Dam

There is a little cafe above the main car park for a coffee and cake after the "gift shop" labelled walks. As usual, Komoot makes the walk easier than using signposts - remember to download to the phone app. Kayaking/canoeing around the lake is only possible for about half of it due to a protected bird sanctuary.

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Jake Heath
August 20, 2024, Lake Vyrnwy

Vast, beautiful lake

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The Straining Tower at Lake Vyrnwy is an intake tower built to extract water from the lake. The tower stands on the north shore of Lake Vyrnwy, near the village of Llanwddyn, in Powys, Wales. The Lake Vyrnwy dam project was designed to provide a water supply to the city of Liverpool and work on the dam began in 1881. On its completion 11 years later, the lake was the largest reservoir in Europe and water was drawn from it into the straining tower and carried to Liverpool on a 110km-long aqueduct. The engineers for the project were Thomas Hawksley and George Frederick Deacon, although the straining tower was entirely Deacon's design. The tower is constructed in a Gothic Revival style, purportedly based on the tower of the castle at Chillon, Switzerland. It draws heavily on the contemporaneous work of William Burges, whose Cardiff Castle and Castell Coch are clear influences. The straining tower is a Grade I listed building

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Lake Vyrnwy (Welsh: Llyn Efyrnwy, pronounced [ɛˈvərnʊɨ] or Llyn Llanwddyn) is a reservoir in Powys, Wales, built in the 1880s for Liverpool Corporation Waterworks to supply Liverpool with fresh water. It flooded the head of the Vyrnwy (Welsh: Afon Efyrnwy) valley and submerged the village of Llanwddyn.

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More Information

Exploring Lake Vyrnwy’s dense forests

The vast majority of walks around Lake Vyrnwy include gorgeous forest trails as most of the lakeside is wooded. The forests are large swathes of evergreens but you’ll find oak woodlands too, along with a great variety of other species. The woods are alive with birdsong in spring and summer, a musical accompaniment as you hike to viewpoints and find the cascading streams descending from the hilltops above. 

On the eastern side of the lake at Pont Ty-uchaf, you can hike into the woods to see the country’s tallest tree, a Douglas Fir. It stands next to a stunning upraised hand sculpture carved out of the trunk of the previous tallest tree, which was felled after storm damage. At over 198 feet (60 m), it certainly has some grandeur to it. 

Dams and waterfalls

Some of the best hiking trails round Lake Vyrnwy begin in Llanwddyn, the village on its southern edge. You’ll find the impressive stone dam here too, the first of its kind in the UK. With turrets, towers and arches, it’s quite something to look at. If you hike south east towards Craig Garth-Bwlch hill, you can enjoy stunning views of the dam and its water behind. 

There’s plenty of opportunity for your hikes around Vyrnwy Lake to include a waterfall or two. Perhaps the most spectacular is the Rhiwargor Waterfall at the far northern end. You can park here and walk through the forest to the north west. Before long, you’ll find the crashing water as it makes its way off Cefn Coch. There are smaller falls on most of the streams coming down from the hills, including Eunant and Ceunant Moel-y-nant.

One of the best viewpoints of the lake is from the top of the dam itself. From here, you can see the stunning, turreted Victorian straining tower as it sits on the lake just away from the shore. In autumn, this is a fantastic place to see the multitude of colours in the forests, from deep greens to burnt umber.


Frequently Asked Questions

How many hiking trails are available around Lake Vyrnwy?

Lake Vyrnwy offers a diverse network of over 10 hiking trails, catering to various abilities. You'll find everything from gentle lakeside strolls to more challenging routes through woodlands and over hills.

What kind of terrain can I expect when hiking around Lake Vyrnwy?

The terrain around Lake Vyrnwy is varied and picturesque. Hikers can expect to traverse vast forests, including dense conifer plantations, birch, and oak woodlands. There are also rocky crags, rolling hills, and expansive moorland, alongside paths that follow the lake's perimeter and mountain streams.

Are there any easy hiking trails suitable for beginners or casual walkers?

Yes, Lake Vyrnwy has several easy trails perfect for beginners or those seeking a relaxed walk. For instance, the Lake Vyrnwy Dam – Artisans Café & Gift Shop loop from Llanwddyn is an easy 5.6 km route. The Grŵn-oer Trail is also a short, easy woodland loop.

Can I walk around the entire Lake Vyrnwy?

Yes, a popular option is the circular walk around the entire lake, which is approximately 12 miles (19 km) long. This route typically takes 4-5 hours to complete and follows the perimeter road, which is relatively flat.

Are there any waterfalls I can visit on a hike?

Absolutely. A significant highlight is the Rhiwargor Waterfall, located at the northern end of the lake. You can reach it via the Bridge with View of Waterfall – Rhiwargor Waterfall loop from Lake Vyrnwy. Another natural waterfall, Nant y Maes, can be found along the Nant y Maes stream. You can find more information about it here: Nant y Maes Waterfall.

What natural landmarks or points of interest can I see while hiking?

Beyond the stunning lake itself, you can explore the impressive Lake Vyrnwy Dam, a Grade I listed building, and the iconic Lake Vyrnwy Straining Tower. The area is also an RSPB nature reserve, offering excellent birdwatching opportunities.

Are there any unique forest experiences or giant trees to see?

Yes, the area is home to the 'Giants of Vyrnwy'. You can experience this on the Giants of Vyrnwy – Lake Vyrnwy Dam loop from Abertridwr, which takes you through an impressive grove of giant redwoods. Don't miss the 'Giant's Hand of Vyrnwy' sculpture, carved from a previously tallest tree in the UK, which you can see on the Sunken Village of Lake Vyrnwy – Giant Hand of Lake Vyrnwy loop from Lake Vyrnwy.

Are the hiking trails around Lake Vyrnwy suitable for families with children?

Many trails around Lake Vyrnwy are family-friendly, offering gentle gradients and engaging sights. The Rhiwargor Waterfall is accessible via an easy walk, making it popular for families. Shorter forest loops like the Grŵn-oer Trail are also ideal for walks with children.

Can I bring my dog on the hiking trails at Lake Vyrnwy?

Lake Vyrnwy is generally dog-friendly, with many trails suitable for walks with your canine companion. However, as it's an RSPB nature reserve and a working agricultural area, it's essential to keep dogs under close control, preferably on a lead, to protect wildlife and livestock.

What is the best time of year to visit Lake Vyrnwy for hiking?

Lake Vyrnwy offers beautiful hiking experiences year-round. Spring brings vibrant flora and nesting birds, while summer provides longer daylight hours for extended walks. Autumn showcases stunning foliage, and winter, though colder, offers crisp air and serene, often snow-dusted landscapes. Always check local weather conditions before heading out.

Where can I find parking for the hiking trails?

There are several car parks strategically located around Lake Vyrnwy. The Rhiwargor car park provides easy access to the Rhiwargor Waterfall trail. Other parking areas are available near the dam and various trailheads around the lake, making it convenient to start your hike.

What do other hikers enjoy the most about hiking in Lake Vyrnwy?

The area is highly rated by the komoot community, with an average score of 4.6 stars from over 100 reviews. Reviewers often praise the diverse landscapes, from tranquil forests to dramatic waterfalls, and the well-maintained paths that cater to all abilities. The stunning views of the lake and surrounding mountains are frequently highlighted.

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