Nant Ffrancon Pass, Ogwen Valley, Snowdonia, Gwynned, Wales, UK, Europe

Ogwen Valley (Dyffryn Ogwen), Gwynedd, Snowdonia National Park, Wales, United Kingdom, Europe

Hikers in the Ogwen Valley (Dyffryn Ogwen) with the Glyderau mountain range in front, Gwynedd, Snowdonia National Park, Wales, United Kingdom, Europe

Llyn Ogwen, Ogwen Valley (Dyffryn Ogwen) with the Glyderau mountain range on either side, Gwynedd, Snowdonia National Park, Wales, United Kingdom, Europe

A small unnamed source in the Ogwen Valley (Dyffryn Ogwen) with the Glyderau mountain range behind, Gwynedd, Snowdonia National Park, Wales, United Kingdom, Europe

Autumn colours in Ogwen Valley backed by Tryfan and the Glyderau mountains, Snowdonia National Park (Eryri), North Wales, United Kingdom

Wildflowers in the Ogwen Valley with Tryfan beyond, Snowdonia National Park, North Wales, United Kingdom, Europe

Bogbean (Menyanthes trifoliata) in foreground, with Glyder Fach, Bristly Ridge and Tryfan mountain east face across Nant yr Ogof, Snowdonia National Park, Ogwen, Conwy, Wales, United Kingdom, Europe

Water cascading down a fall on the Afon Lloer, overlooking the Ogwen Valley and Tryfan in the Glyderau mountain range, Snowdonia, Wales, United Kingdom, Europe

A view of Llyn (lake) Ogwen in Snowdonia National Park, Gwynedd, Wales, United Kingdom, Europe

Tryfan, Llyn Ogwen and the Ogwen Valley in winter, The Glyderau Mountains, Snowdonia National Park, North Wales, United Kingdom, Europe

Llyn Bochlwyd, and the Ogwen Valley from Glyder Fach, Snowdonia National Park, Gwynedd, Wales, United Kingdom, Europe

Tryfan and the Ogwen Valley viewed from Bristly Ridge, Eryri, Snowdonia National Park, Gwynedd, North Wales, United Kingdom, Europe

Tryfan, the Ogwen Valley and Glyderau Mountains viewed from Bristly Ridge, Snowdonia National Park, North Wales, United Kingdom, Europe

Llyn Ogwen, Cwm Idwal and the Glyderau Mountains, Snowdonia National Park, North Wales, United Kingdom, Europe

Water cascading down a fall on the Afon Lloer, overlooking the Ogwen Valley and Tryfan in the Glyderau mountain range, Snowdonia, Wales, United Kingdom, Europe

A climber makes a free-hanging abseil from a steep cliff in the Ogwen Valley, near Tryfan and Snowdon, Snowdonia, Wales, United Kingdom, Europe

A climber abseiling from a cliff in the Ogwen Valley, Snowdonia, North Wales, United Kingdom, Europe

Stream and Tryfan Mountain, Ogwen Valley, Snowdonia, Wales, United Kingdom, Europe

Stone footpath leading towards Llyn Ogwen with view of Tryfan in Snowdonia National Park. Ogwen, Conwy, Wales

View of Tryfan with flowing river in Snowdonia National Park. Ogwen, Conwy, Wales

Footpath leading towards Llyn Ogwen in Snowdonia National Park. Ogwen, Conwy, Wales

Stone footpath leading towards Llyn Ogwen in Snowdonia National Park. Ogwen, Conwy, Wales

The Glyderau range with Llyn Ogwen in Snowdonia National Park, Wales