Measuring 3.5 miles long and three quarters of a mile at its widest point, Llyn Tegid is Wales’ largest natural lake. The lake is a popular place for water sports such as paddleboarding, canoeing, windsurfing and fishing.
You can purchase a permit to participate in water sports by using the pay and display machines in the lakeside car parks.
No, overnight camping is not permitted on the lake shore or in the car parks.
More information on camping in Eryri can be found on the Camping page.
Dogs are welcome at Llyn Tegid. Make sure to check the latest information on bringing dogs to Eryri on the Dogs page.
No. Barbecues are not permitted on the lake shore.
At times during the summer season, when the weather is warm and the water is still, there will be toxic blue-green algae at Llyn Tegid. Look out for green scum on the surface. Do not touch or enter the water when you see scum on the surface, and inform the lake warden as soon as possible. When blue-green algae have been seen on the lake, the information is shared on the National Park website and on signs around the lake.
You can access the lake from Snowdonia National Park Authority car parks. There are two car parks—one on the lake foreshore and another at Llangower.
Fishing is a popular activity in Llyn Tegid. You can fish by purchasing a fishing permit. Day, week and seasonal permits are available on the Llyn Tegid Permits page.
