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North Wales

Top 20 Lakes in North Wales

Best lakes in North Wales are primarily found within Snowdonia National Park, an area known for its dramatic mountain ranges and glacial valleys. The region's lakes offer diverse natural landscapes, from deep, glacially formed bodies of water to picturesque, shallow mountain tarns. These natural features contribute to the area's rich cultural history and provide varied outdoor experiences. North Wales is characterized by its rugged terrain and significant geological formations, making its lakes central to its identity.

Best lakes in North Wales

  • The most popular lakes include Y Garn Summit, a summit that offers expansive views into Cwm Idwal and the Ogwen Valley. On the summit, visitors are rewarded with views of the surrounding landscape, including Llyn Ogwen, Llyn Idwal, and the distinctive Tryfan peaks.
  • Another must-see spot is Cwm Idwal, a lake in the Glyderau Mountains of Snowdonia. This beautiful lake offers stunning views to Tryfan and Pen Yr Ole Wen, with a circular walk from the visitor center around the lake.
  • Visitors also love Llyn Llydaw (Brittany Lake), a beautiful natural lake nestled amid dramatic mountain peaks. Its stunning location and connection to King Arthur make it a notable destination, with a beach at its far end providing an ideal picnic spot.
  • North Wales is known for its glacial lakes, mountain tarns, and forest-hidden waters. Visitors can explore a variety of lakes, each offering unique natural features and recreational opportunities.
  • The lakes in North Wales are appreciated by the komoot community, with more than 120 upvotes and over 80 photos shared by users.

Last updated: May 9, 2026

Y Garn Summit

Highlight • Summit

Y Garn of the Glyderau is a mountain of two halves. On one side it drops in continuous green slopes to the pass of Llanberis. On its other it’s a scooped cluster of cliffs, ridges and buttresses, including the scrambling showpiece of Castell y Geifr, all the way to Llyn Idwal in Snowdonia’s most beautiful cwm.

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Llanberis Village and Llyn Padarn

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Llanberis is synonymous with Yr Wyddfa (Snowdon). It's a popular starting point for some of the easier ways to the roof of Wales. Whether it’s via the Llanberis Path or a ride on the Snowdon Mountain Railway, thousands of people every year head to the village with the summit in their sights.

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

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A beautiful lake with stunning views to Tryfan and Pen Yr Ole Wen. There is a circular walk from the visitors centre which takes you around the lake or you can use this as a starting point for the mountains above.

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Llyn Llydaw (Brittany Lake)

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Llyn Llydaw is a beautiful natural lake nestled amid dramatic mountain peaks. The beach at the far end is the perfect place to cool off before the final descent to Pen-y-Pass.

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Llyn Glaslyn (Glaslyn Lake)

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The east side of the Snowdon massif is a sensational natural amphitheatre. A horseshoe of charismatic summits: twin peaked Y Lliwedd, towering Garnedd Ugain, the notoriously narrow Crib Goch and Snowdon herself watch over two high llyns below, Llydaw and Glaslyn.

Glaslyn, though smaller, is higher and more atmospheric. Cupped just below Snowdon's mighty east face, it is a spectacular place and one with Arthurian associations. It is said that King Arthur's sword Exalibur was thrown into the water and that, when Arthur died, his body was placed in a boat on its surface before it was carried away to Avalon.

The Miners' Track begins its ascent to Snowdon's summit from Glaslyn's northern shore. There's also a fantastic grade one scramble up the obvious slabby rib of Y Gribin, which begins from the llyn's eastern end and joins the Watkin path between Snowdon and Y Lliwedd.

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Llyn Cau

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Llyn Cau has an ambience all of its own. This is a beautiful high mountain pool watched over by the frowning cliffs of Craig Cwm Amarch and Penygadair, Cadair Idris' main summit.

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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In terms of reputation, Llyn Bochlwyd plays second fiddle to the larger and more famous Llyn Idwal to the west. However, Bochlwyd has its own majestic charm, nestled beneath Glyder Fach's mighty main cliff and Tryfan's west face.

The circuit of the ridges above the lake is one of the classic scrambling routes in the UK: the Bochlwyd Horseshoe. Taking in Tryfan's North and South Ridges, Glyder Fach's Bristly Ridge and the quieter Y Gribin, the route is an adventurous hiker's dream, rivalling the nearby Snowdon Horseshoe for sheer drama.

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Llyn Dinas

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Llyn Dinas is a picturesque 24-hectare glacial lake in Eryri (Snowdonia) National Park in North Wales, near Beddgelert in the Nant Gwynant valley. It is a popular spot for scenic walks, wild trout fishing, paddleboarding, and swimming. The lake is relatively shallow (maximum 10 metres) and lies on the lower slopes near the Watkin Path to the summit of Snowdon.

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Llyn Cynwch

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Llyn Cynwch acts as both a 'prequel' and 'sequel' to the Precipice Walk, one of the most famous and popular walks in the area with breathtaking views. You'll get a glimpse of the lake if you take the route counterclockwise and you'll see it in all its glory if you finish the walk with a nice, steady stroll along the banks.
Together with the Precipice Walk it is part of the historic Nannau estate and is a working water basin that has supplied drinking water for Dolgellau since 1968. Because it is a water basin, swimming is not allowed.
(DOLGELLAU.uk)

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Llandudno West Shore Beach

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A nice place for a stroll along the beach, can get busy, but you can watch the kite surfers, the seagulls and see when Lewis Carrol came up with the famous story of Alice in Wonderland.

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Tips from the Community

Dominiek Van Dooren
May 7, 2026, Llyn Dinas

Llyn Dinas is a picturesque 24-hectare glacial lake in Eryri (Snowdonia) National Park in North Wales, near Beddgelert in the Nant Gwynant valley. It is a popular spot for scenic walks, wild trout fishing, paddleboarding, and swimming. The lake is relatively shallow (maximum 10 metres) and lies on the lower slopes near the Watkin Path to the summit of Snowdon.

Translated by Google

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Clive G
October 27, 2025, Y Garn Summit

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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Cool cave that many people walk past, going on for quite a bit!

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Amazing place, feels other worldly

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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.

Translated by Google

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Piri
May 25, 2025, Llyn Dinas

Quiet, peaceful,tranquil spot for a picnic

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Great few hours spent. Fairly easy hike.

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Nej
September 2, 2024, Llyn Dinas

Situated just to the north of Beddgelert, and named after the nearby hill fort of Dinas Emrys, Llyn Dinas is a beautiful, peaceful lake perfect for a walk or even a swim.

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Frequently Asked Questions

Which lakes in North Wales are best for water sports?

For water sports enthusiasts, Llyn Tegid (Bala Lake) is a prime destination, offering canoeing, kayaking, sailing, windsurfing, and paddleboarding. Llyn Padarn is also popular for swimming, canoeing, kayaking, and paddleboarding. If you're interested in power boating or water skiing, Llyn Geirionydd is the only lake in Snowdonia that permits these activities.

Are there family-friendly lakes or activities for children in North Wales?

Yes, several lakes are great for families. Llyn Padarn, located within an 800-acre country park, is ideal for swimming and has nearby attractions like the National Slate Museum and the Llanberis Lake Railway. Llyn Dinas is another family-friendly option with footpaths along its southern banks. The Llanberis Village and Llyn Padarn area is also noted as family-friendly.

What unique natural features or wildlife can I find around North Wales lakes?

North Wales lakes are rich in unique natural features. Llyn Tegid is home to the critically endangered Gwyniad fish. Llyn Padarn is a Site of Special Scientific Interest due to its ancient Sessile Oak woodland and the rare Arctic Char fish. Llyn Idwal is internationally recognized for its rock formations and rare plant life within Cwm Idwal. You can explore the stunning scenery of Cwm Idwal, which features dramatic views and unique geology.

Are there hiking trails around the lakes in North Wales?

Absolutely. Many lakes offer excellent hiking opportunities. The 'Bala Lake Trail' around Llyn Tegid is popular. The scenic path around Llyn Padarn provides stunning views. Llyn Ogwen is a gateway to iconic hikes like the Cwm Idwal Circular Walk, which includes Llyn Idwal. For easy hikes, consider the Llyn Idwal loop from Ogwen Cottage or The Precipice Walk & Llyn Cynwch loop.

Which lakes have historical or legendary significance?

Several lakes are steeped in history and legend. Llyn Ogwen is associated with Arthurian legend, believed by some to be the final resting place of King Arthur's sword Excalibur. Llyn Llydaw also has connections to King Arthur. Llyn Geirionydd is reputedly the birthplace of the 6th-century bard Taliesin and has remnants of old lead mines. The name of Cwm Idwal refers to an old Welsh legend about Prince Idwal.

Can I go cycling near the lakes in North Wales?

Yes, North Wales offers great cycling routes that pass by or around its lakes. You can find various road cycling routes, such as a loop of Llyn Tegid & Llyn Efyrnwy from Bala. Many trails around lakes like Llyn Crafnant are also suitable for cycling.

Are there opportunities for wild swimming in North Wales lakes?

Wild swimming is possible in some North Wales lakes, though the water can be very cold. Llyn Idwal is an option, but note that swimming is generally not permitted in nature reserves. Llyn Gwynant is also an excellent location for swimming. Always check local regulations and safety advice before wild swimming.

When is the best time to visit the lakes in North Wales?

The best time to visit the lakes in North Wales generally depends on your preferred activities. Spring and summer (May to September) offer warmer weather, ideal for water sports, hiking, and enjoying the scenic views. Autumn brings beautiful foliage, while winter can offer dramatic, quieter landscapes, though conditions may be challenging for some activities.

What facilities or amenities are available near the lakes?

Amenities vary by lake. Near Llyn Padarn, you'll find the village of Llanberis with outdoor gear shops, places to eat and drink, and the National Slate Museum. Llyn Tegid has the Bala Lake Railway and facilities for water sports. Some lakes, like Llyn Gwynant, have campsites that offer boat hire. Many popular areas will have visitor centers or cafes nearby.

Are there any less crowded lakes for a quieter experience?

For a quieter experience, consider lakes that are slightly less accessible or further off the main tourist routes. While still popular, lakes like Llyn Crafnant, nestled in Gwydir Forest, offer tranquil settings and stunning views. Llyn Geirionydd, also hidden in Gwydir Forest, can provide a peaceful escape, especially outside peak times.

What are some of the most scenic lakes in North Wales?

North Wales boasts many scenic lakes. Llyn Ogwen, nestled between the Glyderau and Carneddau mountain ranges, is famed for its atmospheric scenes and dramatic peaks. Llyn Gwynant, in the heart of Eryri (Snowdonia) National Park, offers stunning landscapes with towering cliffs. Llyn Llydaw is a beautiful natural lake amid dramatic mountain peaks, and Y Garn Summit provides expansive views of Llyn Ogwen and Llyn Idwal.

Are there any lakes with unique geological formations?

Yes, the region's glacial history has left unique geological formations. Llyn Tegid is a glacial lake with remarkably straight parallel sides. Llyn Padarn is a glacially formed lake, and Llyn Idwal is a small, ice-sculpted lake located within Cwm Idwal, a glacial cirque valley, renowned for its rock formations.

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