Cadair Idris (Cader Idris) mountain and Gregennen lake (National Trust), Snowdonia National Park, Gwynedd, Wales, UK, Europe

The frozen Llyn Y Gadair below summit of Cyfrwy, 811m, near Cadair Idris, Snowdonia National Park, Wales, United Kingdom, Europe

Llynnau Cregennen and Cadair Idris in autumn, Snowdonia National Park, Wales, United Kingdom, Europe

Craig Cau photographed from the peak of Cadair Idris, Snowdonia, during a cloud inversion in winter, Wales, United Kingdom, Europe

Morning light illuminates the top of Craig Cau during a cloud inversion, photographed from the top of Cadair Idris, Snowdonia, Wales, United Kingdom, Europe

Cadair Idris mountain and Gregennen Lake (National Trust), Snowdonia National Park, Gwynedd, Wales, UK

The market town of Dolgellau beneath Cadair Idris (Cader Idris) mountain, Snowdonia National Park, Wales, United Kingdom, Europe

Cadair Idris (Cader Idris) mountain reserve, Snowdonia National Park, Wales, United Kingdom, Europe

Cadair Idris (Cader Idris) mountain and Gregennen Lake, National Trust area, Snowdonia National Park, Gwynedd, Wales, United Kingdom, Europe