Llyn Clywedog, Wales

December 20, 2013
[custom_frame_center shadow="on"]Llyn Clywedog[/custom_frame_center]

Llyn (Lake) Clywedog is a massive lake of 615 acres spanning 6 miles, set in the rolling mountains and hills of Mid-Wales.

Yet this large lake is not as well known as its larger cousin Bala (Llyn Tegid) to the north.  However, unlike Bala, this is not a natural lake, and is the result of a massive dam across a number of valleys, which has created this S-shaped highland lake.

Access for Water Sports

Access to the water is via Clywedog Sailing Club, who provide a Day Sailing pass for both sailing dinghies and canoes, which includes the use of club facilities (fully equipped kitchen, showers, toilets, and changing rooms).

Dinghies and Canoes must have 3rd party insurance to use the lake.

The club also has a small camping area, so if you wanted to stay overnight that can be arranged.

When we visited, even though unannounced, we were given a very warm welcome, and the slipway provided an easy point to launch our Hudson inflatable canoe.

Note that the lake is 1000ft above sea level, and so access is only between March to the end of October, due to access difficulties during Winter.

The Lake

The lake winds up the valleys in roughly an S-shape.  We found that meant winds came from a number of different directions, but wasn’t too bad in our canoe as hugging the shoreline provided some shelter.

The different sections actually provide very different ‘feel’, from rocky shorelines, tree lined shorelines, heathland shorelines, grassy shorelines, and sandy shorelines.  This makes for a great place to explore.  Some of the shores are only accessible from the water, and make a great place to stop for a while and have a picnic.

The Llyn Clywedog Dam is the tallest mass concrete dam in Britain and is 236ft / 72m high, and 750ft long, holding around 11,000 million gallons.  Severn Trent has a small visitors centre and observation platform to look down on the dam.  You pass this onto the way to Clywedog Sailing Club.

The waters feed the River Severn.

Getting in Touch with Llyn Clywedog

Here's how you can get in contact with Llyn Clywedog.

Llyn Clywedog Website

[email protected]

01686 640305

Where to find Llyn Clywedog

Head to the village of Llanidloes and follow the signs. Carry on past the Severn Trent visitors centre and up the hills. Watch out for the sign on the right for the Sailing Club. Follow the farm track down the hill, through the gate, and the club is at the shoreline. Put the map into satellite mode for an exact location.

Llyn Clywedog, Llanidloes, Powys.


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Father to 3 kids, who loves getting out and about (hiking, running, camping, cycling, canoeing...) Co-founded Get Out With The Kids to help other parents enjoy the outdoors with their family.

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  1. Thanks for information as we, as “local” family when elder son only toddler and on our ski-bob (on suitable rope about 22 metres long) had family membership at Clywedog Sailing Club. “Fun boat” proved useful ahead of course with “Pico” and rescue boat tuition there.
    Our younger son did more challenging course RYA Dinghy Sailing (Level 1) when aged seven years, at Llangorse Sailing Club (with family membership) and we used our inflatable kayak there (maximum weight capacity 300 kilos), with sail, for adult plus both boys.
    We have two smaller inflatable kayaks (single seat version suitable for 70 kilos maximum weight person and double for total weight of one adult and child of average weights), but note your warning of winds tending to prove potential problem as, after on Lake Bala in morning with both boys in our largest kayak on tow rope always held by adult on shore, sadly man drowned in afternoon in his own kayak.
    Since then I admit teaching my wife to kayak only at New Quay in very shallow water, off main beach at low tide, but boys went on surf ski course and whole family had First Aid excellent tuition there.
    We do have suitable lifejackets available at all times and no prize for guessing only I sometimes “forget” mine when, now, only ever launching in very calm conditions, but aware (since dinghy sailing since 1975 and windsurfing from 1978) that conditions can change rapidly, so staying very close to shoreline.

  2. […] next stop was the main car park of Clwydog Dam, The Fam route is quite easy to miss mainly because the path is hidden and unless you’ve got walking boots […]

  3. […] we’ve found the Sevylor Hudson to handle very well in the water.   Both on an open lake with a lot of wind and going up-stream on the river, the Hudson handled […]

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