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Corris

Top 18 Lakes around Corris

Best lakes around Corris, a village in Mid Wales, serve as a base for exploring several picturesque lakes in the surrounding region. These "llyns" (Welsh for lakes) offer diverse natural beauty, historical significance, and recreational opportunities. The area features a mix of high mountain glacial lakes, serene woodland lakes, and accessible twin lakes, providing varied experiences for visitors.

Best lakes around Corris

  • The most popular lakes is Llyn Cau, a high mountain glacial lake. It is characterized by deep, clear waters and is overlooked by the dramatic cliffs of Craig Cwm Amarch and Penygadair.
  • Another must-see spot is Llyn Cynwch, a lake that is an integral part of the historic Nannau estate and a working water basin. It is surrounded by broadleaf woodland and offers a serene setting, acting as a starting or ending point for the famous Precipice Walk.
  • Visitors also love Cregennan Lakes, two beautiful twin lakes owned by the National Trust. They are situated on the northern slopes of Cadair Idris and offer views of the Mawddach Estuary and Barmouth Bridge.
  • Corris is known for high mountain glacial lakes, serene woodland lakes, and accessible twin lakes. The region offers a variety of lakes to see and explore, from those nestled in dramatic mountain cirques to those providing tranquil walks.
  • The lakes around Corris are appreciated by the komoot community, with 155 upvotes and 101 photos shared across the highlights.

Last updated: May 6, 2026

Llyn Cau

Highlight • Viewpoint

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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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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Cregennan Lakes

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These twin lakes are particularly beautiful and lie just north of Cadair Idris. Both are owned by the National Trust and are free to visit. With mountains rising around them and views down to Barmouth and its estuary, don't leave your camera at home, because this is a fantastically photogenic spot.

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Glasgwm summit and Llyn y Fign

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Glasgwm is a hugely charismatic peak in Southern Snowdonia's Aran range. Craig Cywarch, its east-facing cliffs are particularly striking and are frequented by rock climbers. Its summit is dotted with little llyns, including Llyn y Fign, which is notably large considering its high elevation.

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From Cwm Cau, the impressive pointed summit of Craig Cwm Amarch looks even mightier than Cadair Idris' main Penygadair summit. It is certainly the most airy summit in the massif and care must be taken when treading close to its cliff edge, which plunges down to Llyn Cau.

The summit is an exceptional viewpoint, with Penygadair to the north, the cwm below and the gentle green of the Tarren Hills to the south.

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Lôn Las Cymru through Wales (NCR 8) – Ride from Holyhead to Cardiff

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Lôn Las Cymru through Wales (NCR 8) – Ride from Holyhead to Cardiff

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Tips from the Community

Annja
August 31, 2025, Cregennan Lakes

First, a somewhat adventurous ride on the single track to the parking lot, which costs £5. The easy loop around the lake is very beautiful and relaxing – the sheep roam freely, but they keep their distance. Dogs must be on a leash, of course, but that's not a problem. Enjoy it – and if you're up for more, go for a longer loop. There are a few tables and benches above the parking lot for your picnic. You won't find any litter baskets, so you'll have to take them with you – which is perfectly fine, as it's a nature reserve. Highly recommended.

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We camped in bad weather but what a place to see

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https://hoofhike.com/ 👈

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Very nice pre-summit on the way to Pen-y-Cadair

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take a little time, have a sit and let it soak in

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A quieter peak compared to the Eryri hotspots with great views of Cardigan Bay.

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Zoe Evans
November 17, 2023, Llyn Cynwch

A circular walk through the historical Nannau estate and along the shore of Llyn Cynwch The Precipice has a fantastic array of qualities. From habitats such as woodlands and meadows to captivating views of Snowdonia’s mountain ranges. The path will take you through part of the Nannau estate which dates back to the 12th century and is steeped in fascinating Welsh history. The route ends on the shores of Llyn Cynwch—a working reservoir that provides nearby Dolgellau with water.

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Dominiek Van Dooren
September 23, 2023, Llyn Cynwch

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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Frequently Asked Questions

Which lakes near Corris are best for walking and scenic views?

For breathtaking scenery and rewarding walks, consider Llyn Cau, a high mountain glacial lake on Cadair Idris, offering panoramic views of Snowdonia. The hike to it is challenging but worth it. Another excellent choice is Cregennan Lakes, known for their scenic beauty and views of the Mawddach Estuary and Barmouth Bridge, with various walking difficulties available.

Are there any family-friendly lakes or walks around Corris?

Yes, Llyn Cynwch offers a gentle, flat, and peaceful circular walk along its banks, making it suitable for families and dogs. The area around Cregennan Lakes also provides easily accessible walks with a National Trust car park nearby, and the landscape often features sheep, which can be entertaining for children.

What historical or cultural significance do the lakes near Corris hold?

Llyn Cynwch is part of the historic Nannau estate, dating back to the 12th century, with folklore speaking of a marble palace belonging to fairies at its bottom. Llyn Cau is steeped in Welsh mythology, with legends of a terrifying serpent, the Afanc, residing in its depths, and the mountain Cadair Idris itself is tied to tales of giants.

Can I go swimming in the lakes near Corris?

Wild swimming is possible in some lakes, such as Llyn Cau, if you are brave enough for the refreshing dip. However, swimming is not permitted in Llyn Cynwch as it serves as a working water basin supplying drinking water for Dolgellau.

What outdoor activities, besides walking, are available near these lakes?

Many lakes offer excellent fishing opportunities. Cregennan Lakes are popular for fishing wild brown trout and stocked blue and rainbow trout. Llyn Cynwch is also a top fishing spot managed by the Dolgellau Angling Association. For cycling, you can explore various routes, including those around the Cadair Idris area. Check out the Road Cycling Routes around Corris or Gravel biking around Corris guides for more options.

Are there any lakes suitable for fishing near Corris?

Yes, several lakes are excellent for fishing. Cregennan Lakes allow fishing for wild brown trout and regularly stocked blue and rainbow trout. Llyn Cynwch is also a prime fishing location, with licenses issued by the Dolgellau Angling Association for brown and rainbow trout. Tal-y-Llyn Lake (Llyn Mwyngil) is also noted for its excellent fishing opportunities.

What is the best time to visit the lakes around Corris?

The lakes are beautiful year-round, but spring and summer offer the most pleasant weather for walking and outdoor activities. Spring brings the sight of lambs in the farmlands around Cregennan Lakes. For stargazing, the area around Lake Vyrnwy is recognized as a dark skies location, making it ideal for evening visits.

Where can I find easy walking trails around the lakes?

The circular walk around Llyn Cynwch is gentle, flat, and peaceful, making it an easy option for all abilities. The area around Cregennan Lakes also offers easily accessible walks with varying difficulties, including easier paths suitable for a leisurely stroll.

Are there any lakes further afield that are worth visiting from Corris?

Although a bit further from Corris, Lake Vyrnwy is considered Wales' most beautiful lake. It's a large, man-made reservoir surrounded by an 11.75-mile perimeter road, featuring Rhiwargor Waterfall and a significant nature reserve managed by the RSPB. It offers a wide range of activities including walking, cycling, fishing, and water sports.

What are some challenging hikes that include lakes near Corris?

The hike to Llyn Cau on Cadair Idris is a challenging yet rewarding climb, often starting from the Minffordd car park. For an even more strenuous option, consider the Cadair Idris summit loop, which offers views of the lake from above. The area around Glasgwm summit also features Llyn y Fign, a high-elevation lake accessible via challenging routes.

Are there specific parking facilities for lake visits?

Yes, for Cregennan Lakes, there is a National Trust car park nearby, making the spot very accessible. For Llyn Cau, the Minffordd car park is a common starting point for the hike. For Tal-y-Llyn Lake, parking is available near Llyn Mwyngil.

What unique natural features can I expect to see at these lakes?

Llyn Cau is a stunning high mountain glacial lake with deep, clear waters, overlooked by the dramatic cliffs of Craig Cwm Amarch and Penygadair, formed by a cirque glacier. Cregennan Lakes are two beautiful twin lakes, with the larger one featuring a small island. Lake Vyrnwy boasts the impressive Rhiwargor Waterfall and is surrounded by diverse habitats including blanket bog, heather moorland, and woodland.

Are dogs allowed on walks around the lakes near Corris?

Many trails around the lakes are dog-friendly. For example, the circular walk around Llyn Cynwch is suitable for dogs. It's always advisable to keep dogs on a lead, especially in areas with livestock or protected wildlife, and to check local signage for any specific restrictions.

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