4.6
(522)
3,443
hikers
80
hikes
Hiking around Llyn Alaw offers accessible trails through a diverse landscape. This man-made reservoir, the largest body of water on Anglesey, features an open landscape fringed by vegetation, woodland, and marshy grassland. The terrain around Llyn Alaw is largely flat, making it suitable for a wide range of walkers. The area is designated as a Site of Special Scientific Interest (SSSI) due to its rich birdlife, providing opportunities for wildlife observation.
Last updated: June 30, 2026
5.0
(2)
11
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.8
(29)
197
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.9
(12)
52
hikers
5.93km
01:40
120m
120m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.8
(4)
69
hikers
2.65km
00:44
40m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
5
hikers
5.19km
01:23
60m
60m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Currently in May/June not reachable for the public, something is being worked on there. Fences, cameras and security secure the area extensively.
0
0
Just off the coastal path, parking valuable close by in lay-by approx 3/4 mile away , some big drops and a little easy scramble to get there little beach stoney just beyond large building
1
0
If you're in the area, be sure to plan at least an hour. Parking is free. It feels like you're on another planet. The trails are very easy, you can visit the ruins of the windmill, and it's simply wonderful. Highly recommended, even with a dog.
1
0
Almost like walking on the moon - but then in all shades of yellow and orange.
3
0
Inside is some information on the history of the mine and an interesting overview map of the old mine tunnels.
5
0
What a surreal place to be at - partly an industrial mining tristesse, but then also an amazing range of colours in the sunset worth seeing.
4
0
The ruins are fenced and not directly accessible (probably more to keep the sheep out), but they put up some benches nearby for a break with a view over the sea.
7
0
Great lost place to explore. With a bit of industrial background you can easily decipher the former function of the buildings. Some installations are left and get more and more rusty. The view over the bay is nice and the grassfield is inviting for a picknic (if not already occupied).
10
0
There are over 40 easy hiking trails available around Llyn Alaw. These routes are generally flat and suitable for a wide range of walkers.
The terrain around Llyn Alaw is largely flat, featuring footpaths and way-marked walks along the reservoir's margins. You'll find a mix of open landscapes, sections fringed by vegetation, woodland, and marshy grassland.
Yes, while the paths don't form a complete circuit directly around the entire lake, there are several easy circular routes in the vicinity. For example, the Parys Mountain Copper Mines – Parys Mountain Windmill Ruin loop from Rhosybol offers a circular experience exploring industrial heritage.
Easy hikes near Llyn Alaw offer diverse sights. You can explore the unique industrial landscapes of Parys Mountain with its copper mine workings and windmill ruins, or discover the historic Porth Wen Brickworks along coastal paths. The Llyn Alaw reservoir itself is a significant feature, designated as a Site of Special Scientific Interest (SSSI) due to its rich birdlife.
Yes, the largely flat terrain and accessible footpaths make many of the easy hikes around Llyn Alaw suitable for families. The way-marked walks along the reservoir provide leisurely options, and routes like the Porth Wen Brickworks loop from Burwen are relatively short and engaging for all ages.
Many trails around Llyn Alaw are dog-friendly, but it's always recommended to keep dogs on a lead, especially around livestock and to protect the local wildlife, as the area is an SSSI. Please check specific route details for any restrictions.
The area is highly rated by the komoot community, with an average score of 4.7 stars. Reviewers often praise the expansive reservoir views, the unique historical industrial sites like Parys Mountain, and the peaceful coastal paths.
Yes, parking is generally available at common starting points for trails around Llyn Alaw and its nearby attractions. Specific parking information can often be found on individual route pages or local signage.
Public transport to Llyn Alaw is limited. While some bus routes serve nearby villages like Llanerch-y-Medd, direct access to the reservoir's trailheads via public transport may require additional planning. Checking local bus schedules via Traveline Cymru is advisable.
Llyn Alaw offers pleasant walking conditions throughout much of the year. Spring and summer provide vibrant flora and warmer weather, while autumn brings beautiful colours. Winter can be good for birdwatching, but paths may be muddier. The area is particularly notable for overwintering birds, making it a great spot for bird enthusiasts during colder months.
Absolutely. Llyn Alaw is a designated Site of Special Scientific Interest (SSSI) and is crucial for overwintering birds such as whooper swans, Eurasian Teal, and northern shoveler. Bird hides are available for observation. Beyond birds, you might spot various wildflowers and butterflies, especially in the draw-down zone around the lake's perimeter.
While Llyn Alaw itself is a natural area, nearby villages like Llanerch-y-Medd offer amenities including cafes and pubs where you can find refreshments before or after your hike.


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