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Glantwymyn

Top 12 Lakes around Glantwymyn

Best lakes around Glantwymyn include diverse natural and man-made bodies of water within the surrounding Powys region and nearby Snowdonia. The area features high mountain lakes nestled beneath imposing peaks, as well as significant Victorian-era reservoirs. These locations offer varied landscapes, from dramatic rocky terrain to picturesque woodlands and nature reserves. The lakes provide opportunities for hiking, birdwatching, and enjoying natural features.

Best lakes around Glantwymyn

  • The most popular lakes is View of Llyn Cau from Craig Cwm Amarch,…

Last updated: July 3, 2026

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' …

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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 …

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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 …

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Lake Gwernan

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Sitting under the great hulk of Cadair Idris, Lake Gwernan is an eye-catching feature on Route 82 out of Dolgellau. The lake is 12 acres (5 ha) with gorgeous woodlands …

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Llyn y Gader

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Llyn y Gader is a beautiful high mountain llyn beneath the intimidating north-facing cliffs of Cadair Idris. The Fox's Path brings you to the lake, before continuing up a rugged …

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Popular around Glantwymyn

Mach MTB trails – slate tracks of the Dyfi Valley

Road Cycling Routes around Glantwymyn

Cycling around Glantwymyn

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MTB Trails around Glantwymyn

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Mach MTB trails – slate tracks of the Dyfi Valley

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Katherine Moore

Tips from the Community

Dominiek Van Dooren
May 10, 2026, View of Llyn Cau from Craig Cwm Amarch

Craig Cwm Amarch is separated from Cadair Idris by a short, narrow ridge around Craig Cau, which encloses the beautiful lake Llyn Cau.

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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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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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Seagulls on top of mountain looking for food.

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A challenging yet rewarding hike, with inspiring scenery.

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A beautiful spot for a wild swim on the way up Cadair Idris. The rocks underfoot can be quite sharp and it gets VERY deep - the lake itself is something like 50m deep!

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Frequently Asked Questions

What types of lakes can I explore around Glantwymyn?

The region around Glantwymyn offers a diverse range of lakes, including high mountain lakes nestled beneath imposing peaks like Llyn Cau and Llyn y Gader. You'll also find significant Victorian-era reservoirs such as Lake Vyrnwy, and natural glacial lakes like Llangorse Lake. These locations provide varied landscapes, from dramatic rocky terrain to picturesque woodlands and nature reserves.

Are there any lakes with historical or legendary significance?

Yes, Llyn Cau is steeped in local legends, including tales of a terrifying serpent known as the Afanc. Additionally, Llangorse Lake, the largest natural lake in Mid and South Wales, boasts the only known crannog (a man-made island stronghold) in Wales, dating back to the 10th century, and has its own folklore about a mythical monster.

Which lakes are good for birdwatching?

Lake Vyrnwy is an exceptional destination for birdwatching, being surrounded by an RSPB nature reserve. You can spot species like buzzards, siskins, grebes, pied flycatchers, wood warblers, and redstarts. Llyn Clywedog is also a great spot, with regular sightings of buzzards and red kites, and occasional appearances of ospreys and peregrine falcons. Llangorse Lake is a Site of Special Scientific Interest (SSSI) important for numerous bird species.

Are there family-friendly lakes with easy access for walks?

Lake Gwernan, near Dolgellau, offers accessible walking paths and boardwalks through picturesque woodlands, making it a marvelous place to pause and take in the views. Lake Vyrnwy also features an 11-mile circular road popular for walking and cycling, offering stunning views throughout. For easy hikes around the area, you can explore routes like the Cwm Llinos – Machynlleth loop or the Idris Stores – Corris loop, which can be found in the Easy hikes around Glantwymyn guide.

What outdoor activities can I do near these lakes?

The lakes and surrounding areas offer a variety of outdoor activities. You can enjoy hiking, with challenging routes leading to high mountain lakes like Llyn y Gader, or more moderate trails around reservoirs like Llyn Clywedog. Cycling is popular around Lake Vyrnwy, and watersports are available at Llangorse Lake. Rock climbing is also an option near Glasgwm summit and Llyn y Fign. For more specific routes, check out the Hiking around Glantwymyn or MTB Trails around Glantwymyn guides.

Which lakes offer dramatic mountain views?

Llyn Cau and Llyn y Gader are both high mountain lakes nestled beneath the imposing cliffs of Cadair Idris, offering breathtaking vistas and dramatic rocky terrain. The View of Llyn Cau from Craig Cwm Amarch provides an exceptional vantage point over the surrounding landscape and the cwm below.

Can I go wild swimming in any of the lakes?

Llyn y Gader is known as a popular spot for wild swimming, offering crystal-clear waters beneath the north-facing cliffs of Cadair Idris. Llyn Cau is also mentioned as a potential spot for a swim if you are brave enough.

Are there any lakes suitable for fishing?

Lake Gwernan is a private fishing lake associated with an adjacent hotel. Llangorse Lake is also a popular spot for coarse fishing, particularly for pike.

What makes Lake Vyrnwy unique?

Lake Vyrnwy is a significant Victorian-era reservoir, notable for featuring one of the world's oldest stone dams of its kind, built in the 1880s. It is encircled by an 11-mile road, popular for driving, cycling, and walking, and is surrounded by an RSPB nature reserve, making it excellent for birdwatching.

What do visitors enjoy most about the lakes around Glantwymyn?

Visitors appreciate the diverse natural beauty, from the peaceful atmosphere and breathtaking vistas of high mountain lakes like Llyn y Gader to the dramatic cliffs and rock climbing opportunities near Glasgwm summit and Llyn y Fign. The region's lakes are also valued for their opportunities for hiking, birdwatching, and the rich myths and legends associated with places like Llyn Cau.

Which lake is known for its impressive dam?

Llyn Clywedog is notable for the Clywedog Dam, which is the tallest concrete dam in Britain, constructed between 1965-1967. A 15-mile circular drive around the lake offers panoramic views of this impressive engineering feat and the surrounding landscape.

Can I find lakes with challenging hiking trails nearby?

Yes, lakes like Llyn y Gader are accessed via challenging paths like the Fox's Path, which continues towards Cadair Idris's main summit. The area around Glasgwm summit and Llyn y Fign also offers challenging terrain for hikers and rock climbers. You can find more challenging routes in the Hiking around Glantwymyn guide.

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Still not found your perfect lake around Glantwymyn? Check out the guides of these regions to see even more beautiful places.

Brecon BeaconsRhayaderLlanwrthwlLlangurigLlanafanfawrSt. HarmonCadfarchTreflysNantmelLlanwddynLlangynogLlanbrynmairLlanyreMachynllethBanwyLlanidloes WithoutTrefeglwysLlanfihangelPen-Y-Bont-FawrLlanrhaeadr-Ym-MochnantLlanfyllinLlanerfylLlanfair CaereinionLake VyrnwyLlangyniew

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