Best lakes in Conwy are situated within a county borough in North Wales, characterized by diverse natural landscapes. The region features a range of lakes, from those nestled in forests to those set against mountain backdrops. Conwy's geography includes valleys, moors, and mountainous terrain, providing varied environments for its water bodies. These lakes offer opportunities for recreation and nature appreciation within the area's distinct natural settings.
Last updated: April 25, 2026
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This is a serene lake located in the Conwy Valley surrounded by forested hills and the rugged landscape of Snowdonia. There's a cafe and fishery further south along the lake which is a lovely place to stop and refuel.
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Though it was not a tough or technical ride, it did take me into territory I had never visited before and was a lovely antidote to the 'fleshpots' of Gwydir Forest or Coed-y-Brenin. Some lovely gentle singletrack, beautiful views and I didn't see another rider for the whole trip - although tbh I did set off at 08.30 on a Wednesday!!
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The grand, ornate stone dam of Alwen Reservoir couldn't be more of a contrast to the neighbouring Llyn Brenig Dam. It's well worth taking a minute or two to take in this magnificent feat of engineering, that was completed in 1920. The reservoir here was built to provide drinking water for Liverpool and the Wirral.
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Llyn Ogwen is a ribbon lake in north-west Wales. It lies alongside the A5 road between two mountain ranges of Snowdonia, the Carneddau and the Glyderau.
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Llyn Crafnant is a lake that lies in a valley in Wales where the northern edge of the Gwydir Forest meets the lower slopes of the Carneddau mountains and, more specifically, the ridge of Cefn Cyfarwydd. The head of the valley offers a profile of crags which are silhouetted at sunset. The Forest Park guide (2002) states that "the (view along Llyn Crafnant) is one of the most breathtaking views in all Snowdonia" Crafnant takes its name from “craf”, an old Welsh word for garlic, and “nant”, a stream or valley. Many visitors walk there from the village or from the neighbouring lake of Llyn Geirionydd, which runs parallel to it, but a mile distant, the two being separated by Mynydd Deulyn – “mountain of the two lakes”. The lake can also be reached on foot from Capel Curig.
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Many lakes in Conwy offer excellent walking and cycling opportunities. For an easy stroll, Llyn Crafnant features a 2.5-mile (4 km) circular trail suitable for all ages. Llyn Geirionydd also has easy forest tracks, including a popular 3.1km circular route. For cycling, Llyn Brenig is renowned for its trails, including the 'Brenig cycle trail' and 'Alwen cycle trail', which are part of the wider gravel biking routes in Conwy. You can find more details on these and other routes in the Gravel biking in Conwy guide.
Yes, several lakes serve as starting points or features on more challenging hikes. Llyn Bochlwyd (Bochlwyd Lake) is central to adventurous routes like the Bochlwyd Horseshoe, which involves classic scrambling. Llyn Crafnant offers routes ascending into the surrounding Carneddau mountains, providing panoramic views. Llyn Cowlyd, set amidst rugged mountains, has trails catering to different skill levels, offering spectacular views of Snowdonia. For more intense mountain hikes, explore the Mountain Hikes in Conwy guide.
Conwy's lakes are rich in natural beauty. Llyn Crafnant is known for its stunning waterfalls, secluded forests, and incredible mountain views. Llyn Cowlyd is the deepest lake in North Wales, offering dramatic, rugged mountain scenery. Llyn Conwy, the source of the River Conwy, provides stunning views of Arenig Fawr. From the highest point around Llyn Elsi, you can enjoy views of the Carneddau mountain range. Llyn Ogwen is visually striking due to its dramatic location between the Carneddau and Glyderau ranges.
Parking availability varies by lake. Llyn Geirionydd offers free parking and clean toilet facilities. At Llyn Conwy, parking is available near an old house called 'Llyn Cottage'. For Llyn Crafnant, there is parking available, and you can find more information about its family-friendly trail and facilities on the Visit Conwy website.
The lakes in Conwy can be enjoyed year-round, but the best time often depends on your planned activities. Spring and summer offer warmer weather, ideal for water activities like paddleboarding and kayaking at Llyn Geirionydd, or renting rowing boats at Llyn Crafnant. These seasons also make for pleasant walking conditions. Autumn brings beautiful foliage, while winter offers a more serene and dramatic landscape, though some facilities like seasonal cafes may be closed. Always check local weather conditions before your visit.
Yes, several lakes are ideal for families. Llyn Crafnant has an easy 2.5-mile (4 km) circular trail suitable for all ages, including those with buggies, and offers a seasonal cafe and public toilets. Llyn Geirionydd is also an excellent choice for families, with easy forest tracks, picnic spots, and safe areas for children to paddle. Llyn Elsi offers a peaceful escape with a scenic path through the forest, suitable for a family outing.
Water activities vary by lake. Llyn Geirionydd is one of the few lakes in Snowdonia that permits powered watercraft, and it's popular for fishing, paddleboarding, kayaking, and wild swimming. Llyn Crafnant is known for fishing (rainbow and wild brown trout) and offers rowing boat rentals in season. Llyn Brenig is renowned for fly-fishing and also popular for sailing. While fishing is popular at Llyn Cowlyd, swimming is not recommended due to its consistently low temperatures.
Yes, the region around Conwy's lakes has historical significance. Llyn Brenig is a significant archaeological site, being the location of a Mesolithic hunter/gatherer group during its construction. The lake also has an Osprey Exhibition. Llyn Conwy features an intact boathouse on its southern shore that once housed a lifeboat. Additionally, the Eigiau Dam Ruins are a notable historical site near some of the lakes.
Conwy's lakes are home to diverse wildlife. Llyn Brenig is known for its Ospreys, with an exhibition dedicated to them. Llyn Cowlyd is designated as a Site of Special Scientific Interest due to its unique flora and fauna. Anglers at Llyn Geirionydd and Llyn Crafnant can find wild brown trout, and Llyn Crafnant is also known for rainbow trout. Nature lovers visiting Llyn Elsi can enjoy fascinating wildlife within its forest setting.
Wild swimming is possible in some lakes, but caution is advised. Llyn Geirionydd is a popular spot for wild swimming. However, swimming is generally not recommended in Llyn Cowlyd due to its low year-round temperature and depth. Always assess conditions, be aware of cold water shock, and consider local advice or restrictions before entering the water. For more information on fishing, which is a popular water activity, you can visit the Visit Conwy fishing page.
Yes, the Conwy region offers excellent mountain biking opportunities, with trails often passing near or around the lakes. The Gwydir Mawr Trail is a popular option. You can also find routes like 'Llyn Cowlyd and the Crafnant valley loop' which combine lake scenery with mountain biking. For a comprehensive list of trails, including difficulty grades, refer to the MTB Trails in Conwy guide.


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