Llyn Cau

Lake · Llanfihangel-y-Pennant Community

Llyn Cau

Lake · Llanfihangel-y-Pennant Community

1

Dolgellau LL36 9AJ, UK

Photos

Llyn Cau by null
Llyn Cau by Alamy
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null
Llyn Cau by null

Highlights

Llyn Cau is a stunning glacial lake nestled in Cadair Idris’s crater, offering a breathtaking, rewarding hike with serene views and fresh mountain air.  

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Dolgellau LL36 9AJ, UK Get directions

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Dolgellau LL36 9AJ, UK Get directions

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Last updated

Aug 2, 2025

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@tatler

"So you've walked Snowdonia (well done you) and, as a result, turned into a hot, sweaty mess. What to do? Jump into Llyn Cau, the melted glacier slap-bang in the middle of the crater of Cadair Idris, that's what. The 1,150-foot ascent will have you gagging for a chilling dip, even if you're surrounded by freshly fallen snow."

Pattern of hills and trees around lake
The best wild swimming spots in the UK
View Postcard for Llyn Cau

Iona Mulholland

Google
Lovely walk with several paths to take from easy to strenuous. Paid parking, toilets and bins easy to access. I’ll be back.

Ben Anthony

Google
A breathtaking view from the lake when fog isn't covering it. The walk to the lake doesn't take too long, and is easily located when following the path, which does split off but just follow OS Maps which takes you to the lake. Didn't see many people there when I went there to camp.

Syed M.H haris

Google
This is the most beautiful breathtaking place i have ever visited. The car park is 3 pounds for 4 hours. The lake is around 3-4 KM from the carpark. The 1st 40 mins are the hardest as you have to climb on rock path along the stream. After that, it's just beautiful nature. Your eyes cannot process all the extraordinary beauty of this place. Piece of advice: you might be tired halfway but Don't give up. This place is worth seeing

Ben Murray

Google
Beautiful lake up high in a mountainous region. It is quite a rigorous walk to get there but well worth it.

David Gruhl

Google
Stunning mountain top lake. The big hike takes several hours but it’s a relatively easy hike up the the lake and back to the car park. Well worth it.

Withcoste

Google
I really cannot describe how much I like this place ! One of the best experience since I’m in Uk and the most relaxing one ! Really recommend visiting this lake!!

Mark Lewis

Google
The iconic lake (llyn) captured by Richard Wilson in the late 18th century. Original hangs in Tate Britain.

Martin de Fleurian

Google
Beautiful glacial lake at the end of a steep but short trail. Way worth it.