Cwm Idwal Lake in Snowdonia Wales

Dramatic mountain by pristine blue lake, surrounded by rugged moorland terrain and scattered clouds. Cwm Idwal is a spectacular hanging glacial valley and Wales' first National Nature Reserve, located in the Ogwen Valley (Eryri/Snowdonia National Park). It is famous for its dramatic glacial landscape, the pristine Llyn Idwal lake, rare arctic-alpine plants, and challenging rock climbing.