Top 20 Lakes in Snowdonia
Best lakes in Snowdonia are a prominent feature of Snowdonia National Park, characterized by its mountainous landscapes. Many of these lakes are of glacial origin, contributing to the region's diverse natural environment. The area offers a variety of experiences for visitors exploring its geographic features and cultural heritage.
Best lakes in Snowdonia
- The most popular lakes is Cwm Idwal, a lake nestled in the Glyderau Mountains. It is known for its dramatic scenery and unusual rock formations.
- Another must-see spot is Llyn Llydaw (Brittany Lake), an intermediate lake. Visitors can expect a natural lake amidst mountain peaks, with its far end providing a picnic spot.
- Visitors also love Llanberis Village and Llyn Padarn, a settlement and lake. It is a popular starting point for hikes and offers photo opportunities.
- Snowdonia is known for glacial lakes, mountain tarns, and expansive lowland waters. The region offers a variety of lakes to see and explore, from small, high-altitude pools to large, accessible bodies of water.
- The lakes in Snowdonia are appreciated by the komoot community, with 82 highlights, 83 photos, and 121 upvotes.
Last updated: April 23, 2026
Y Garn Summit
Highlight • Summit
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Llanberis Village and Llyn Padarn
Highlight • Settlement
Long before it was a draw to tourists and hikers, Llanberis was a slate mining town. The Dinorwig Quarry's slate tips are a stark reminder of the region’s heritage.
The village is blessed with several good outdoor gear shops and characterful places to eat and drink.
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Cwm Idwal
Highlight • Lake
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Llyn Llydaw (Brittany Lake)
Highlight • Lake
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Llyn Cau
Highlight • Viewpoint
Like Snowdon's Glaslyn, legend tells of a terrifying serpent, the Afanc, in the depths of the water. It's easy to imagine serpents, dragons and giants in a landscape such as this, which is probably why Cadair Idris is so rich in myths and legends.
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Tips from the Community
Y Garn is a fine hill, usually climbed from Ogwen Valley by it's West ridge, or as part of the walk along the Glyders range between Elidir Fawr and the Glyders themselves. There is however another way up, the East Ridge, which is a Grade 2 scramble and starts from Llyn Idwal.
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Llyn Idwal is a lake (approximately 800 by 300 metres, or 28 hectares) in Cwm Idwal in the Glyderau Mountains of Snowdonia. On the north-western edge of Llyn Idwal is a small pebble beach, which is occasionally used by visitors for recreation. Swimming is not permitted as it is in a nature reserve.
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It can be windy and cloudy here. There are marks to find a trail in the cloud. Also on the top there is a nice area to hide from wind and rest. If not in the cloud, the view is awesome
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Llyn Llydaw (the name comes from the Welsh and means Brittany Lake) is a long, thin lake. It is one of the most visited lakes in the UK. Many walk past this lake on the Miners' Track.
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A large and grassy mountain, in the Glyderau range. With a summit of 914 metres above sea level, Y Garn is the 10th highest of the 15 Welsh 3000s. Y Garn translates to "The Rock or The Cairn", making it a relatively common name for a mountain, resulting in this Y Garn, being one of four Y Garns in Wales, but this one is the biggest and arguable the most majestic! On a good day, the summit provides unmatched views of the North Wales coast, Snowdon and the Ogwen Valley.
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Nice place. I especially recommend the ice cream at Giorgio's!
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Frequently Asked Questions
What are some of the most popular lakes to visit in Snowdonia?
Visitors frequently enjoy Cwm Idwal, known for its dramatic scenery and unusual rock formations, and Llyn Llydaw, a beautiful natural lake amidst mountain peaks that offers a great picnic spot. Llanberis Village and Llyn Padarn is also a popular starting point for hikes and offers excellent photo opportunities.
Are there family-friendly lakes in Snowdonia with activities?
Yes, Llyn Padarn near Llanberis is very popular with families and water-sport enthusiasts, offering scenic walks, kayaking, and paddleboarding. Nearby attractions include Dolbadarn Castle and the National Slate Museum. Cwm Idwal also offers a fairly easy circular walk suitable for families, though swimming is not permitted there.
Which lakes are best for water sports in Snowdonia?
Llyn Tegid (Bala Lake) is the largest natural lake in Wales and a hub for various water sports like canoeing, sailing, and stand-up paddleboarding, with shallow waters near the coast making it beginner-friendly. Llyn Geirionydd is unique as it's the only lake in Snowdonia that permits waterskiing and power boating, alongside paddleboarding and swimming.
What historical or legendary sites are associated with Snowdonia's lakes?
Several lakes are steeped in legend. Llyn Ogwen is associated with Arthurian legend, with some believing it to be the final resting place of Excalibur. Llyn Llydaw and Glaslyn also hold Arthurian associations. Llyn Tegid (Bala Lake) is known for folk tales, including that of 'Teggie,' the Welsh equivalent of the Loch Ness Monster. Llyn Geirionydd has literary history, reputedly the home of the 6th-century poet Taliesin, and Llyn Dinas is rich in lore about Merlin's treasure.
Are there challenging hikes to lakes in Snowdonia?
Yes, reaching Llyn Cau on Cadair Idris involves a strenuous 350m ascent, rewarding hikers with breathtaking and remote scenes. Many lakes, like Llyn Llydaw and Glaslyn, are also found along the more challenging routes up Snowdon.
What kind of natural features can I expect to see around Snowdonia's lakes?
Snowdonia's lakes are primarily of glacial origin, set amidst dramatic mountainous landscapes. You'll find unique rock formations around Cwm Idwal, which is also a vital habitat for rare Alpine plants. Lakes like Llyn Padarn offer reflective surfaces mirroring surrounding mountains, and Glaslyn is known for its crystal-clear waters surrounded by imposing peaks.
What outdoor activities, like hiking or cycling, can I do near the lakes?
Snowdonia offers numerous outdoor activities near its lakes. For hiking, you can explore routes like the Snowdon via Pyg and Miners' Track Loop or the Cadair Idris loop on the Minffordd path. Cycling options include the Llanberis & the Llyns loop or the Around Lake Bala route. You can find more details on these and other routes in the Hiking in Snowdonia and Cycling in Snowdonia guides.
Which lakes offer the best viewpoints or photographic opportunities?
Llyn Ogwen is a popular spot for photographers due to its atmospheric scenes and dramatic neighboring peaks. Llyn Padarn is famous for the 'Lonely Tree' and its reflective surfaces. On calm days, Llyn Llydaw offers beautiful reflections of Snowdon. The ascent to Llyn Cau also provides breathtaking, remote views.
Are there any less crowded lakes for a quieter experience?
While many lakes are popular, Llyn Dinas offers a more idyllic and potentially quieter experience with excellent fishing and walking opportunities, including a new footpath with superb views. Its rich lore and natural beauty make it a peaceful retreat.
What is the best time of year to visit Snowdonia's lakes?
The best time to visit Snowdonia's lakes generally depends on your preferred activities. Spring and autumn offer pleasant temperatures for hiking and fewer crowds than summer. Summer provides the warmest weather for water sports and longer daylight hours, though popular spots can be busy. Winter can be beautiful for experienced hikers, but conditions can be challenging and require appropriate gear.
Can I find circular walks around the lakes in Snowdonia?
Yes, there are several circular walks. The Cwm Idwal Circular Walk around Llyn Idwal is a popular choice, offering dramatic scenery. Llyn Geirionydd also connects to nearby Llyn Crafnant via a moderate 4.6-mile trail, providing stunning views and a good circular option.
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