Highlight • Lake
Cwm Idwal
Hiking
5.0
(390)
Running
5.0
(2)
Mountaineering
5.0
(1)
This Highlight is in a protected area
Please check local regulations for:
Gwarchodfa Natur Genedlaethol Cwm Idwal
Tips
Jo | The Wandering Wildflower
February 25, 2022
Hiking
A beautiful lake with stunning views to Tryfan and Pen Yr Ole Wen. There is a circular walk from the visitors centre which takes you around the lake or you can use this as a starting point for the mountains above.
Dominiek Van Dooren
July 1, 2025
Hiking
Llyn Idwal is a lake (approximately 800 by 300 metres, or 28 hectares) in Cwm Idwal in the Glyderau Mountains of Snowdonia.
On the north-western edge of Llyn Idwal is a small pebble beach, which is occasionally used by visitors for recreation. Swimming is not permitted as it is in a nature reserve.
On the north-western edge of Llyn Idwal is a small pebble beach, which is occasionally used by visitors for recreation. Swimming is not permitted as it is in a nature reserve.
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Sebastian Kowalke
January 12, 2018
Hiking
The name of the small lake Llyn Idwal refers to an old Welsh legend. In the 12th century, Owain, Prince of Gwynedd, gave his only son Idwal into the care of his retainer Nefydd Hardd. Nefydd was commissioned to look after his master's son, but Nefydd's son Dunawd was jealous of the talented Idwal. So he pushed Idwal into this lake and he drowned. Owain banished Nefydd and his son from the kingdom and named the lake in mourning for his only son.
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Nearby routes
Best routes near Cwm Idwal
Details
Informations
Elevation 370 m
Weather
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Tuesday 21 July
21°C
8°C
0 %
Additional weather tips
Max wind speed: 14.0 km/h
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