Graham Eaton / An underwater view of a woodland stream, River Glaslyn, Snowdonia NP, Gwynedd, Wales, UK, May

Graham Eaton / A low angle view of a waterfall, from within a mountain stream, Ogwen Cottage, Snowdonia NP, Gwynedd, Wales, UK, February

Graham Eaton / Underwater landscape within a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / View looking up a waterfall from within a stream, Snowdonia NP, Gwynedd Wales, UK, December

Graham Eaton / A split-level image of a mountain stream, in autumn, with water droplets on lens, Nant Ffrancon Valley, Snowdonia NP, Gwynedd, Wales, UK, October

Graham Eaton / View towards Arenig Fach over open moorland, with stormy sky and dark clouds. Snowdonia NP, Gwynedd, Wales, UK, October

Graham Eaton / Underwater view of a rapidly flowing mountain stream, Snowdonia NP, Gwynedd, Wales, UK, November

Graham Eaton / View of frozen Llynnau Mymbyr, a mountain lake, with fog partly revealing a mountain ridge, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / A split-level view through a small waterfall, Llanberis, Snowdonia NP, Gwynedd, Wales, UK, July

Graham Eaton / Underwater view of a mountain lake, Llyn Idwal, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Underwater view of a mountain lake with frozen surface, Llyn Idwal, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Split level shot of Llyn Idwal and Cwm Idwal, showing freshwater habitat with Green lacustrine algae (Chlorophyceae sp.), Snowdonia NP, Gwynedd, Wales, UK, August

Graham Eaton / Underwater view of a mountain lake, Llyn Idwal, Gwynedd, Snowdonia NP, Wales, UK, December

Graham Eaton / Underwater view of River Glaslyn rapids, Snowdonia NP, Gwynedd, Wales, UK, April

Graham Eaton / Under the ice scene of freshwater frozen lake. Llyn Dinas, Snowdonia, Wales, December 2010.

Graham Eaton / Split level image of Cwm Idwal and Llyn Idwal showing lake and mountain habitat and lacustrine algae, Snowdonia NP, North Wales, UK, January 2010. Winner of the Living Landscape: Connectivity categor...

Graham Eaton / Underneath the ice of Llyn Dinas lake, Snowdonia NP, Wales, December

Graham Eaton / Underneath the ice of Llyn Dinas lake, Snowdonia NP, Wales, December. Commended image in the LANDSCAPE PHOTOGRAPHER OF THE YEAR awards competition 2011

Graham Eaton / River Glaslyn in winter, Bedgellert, Snowdonia NP, Wales, January 2010.

Graham Eaton / An underwater view of a mountain stream showing internal reflections on the water surface, Snowdonia NP, Gwynedd, Wales, UK, December 2009.

Graham Eaton / Underwater view of River Glaslyn rapids, Beddgelert, Snowdonia NP, Wales, April 2010.

Andy Rouse / Wood Warbler (Phylloscopus sibilatrix) perched on branch in Oak (Quercus) woodlands, Snowdonia NP, Wales, UK, May.

Andy Rouse / Wood Warbler (Phylloscopus sibilatrix) perched on branch in Oak (Quercus) woodlands, Snowdonia NP, Wales, UK, May.

Andy Rouse / Wood Warbler (Phylloscopus sibilatrix) adult displaying begging / courtship behaviour and calling, perched on branch in Oak (Quercus) woodlands, Snowdonia NP, Wales, UK, May.

Andy Rouse / Wood Warbler (Phylloscopus sibilatrix) close up, perched on branch in Oak (Quercus) woodlands, Snowdonia NP, Wales, UK, May.

Andy Rouse / Wood Warbler (Phylloscopus sibilatrix) perched on branch in Oak (Quercus) woodlands, Snowdonia NP, Wales, UK, May.

Andy Rouse / Wood Warbler (Phylloscopus sibilatrix) perched on branch in Oak (Quercus) woodlands, Snowdonia NP, Wales, UK, May.

Tim Edwards / Lake Mymbyr in Snowdonia NP. Gwynedd, Wales. Views to the Snowdon Horseshoe.

Tim Edwards / Lake Mymbyr in Snowdonia NP. Gwynedd, Wales. Views to the Snowdon Horseshoe.

Tim Edwards / Southern Snowdonia NP, the river Mawddach in October, Wales.

Tim Edwards / Southern Snowdonia NP, the river Mawddach in October, Wales.

David Noton / View from the summit of Cadair Idris, Snowdonia NP, Wales. Clouds and moutains.

David Noton / Mount Snowdon reflected in Llynnau Mymbyr, Snowdonia NP, UK

Tim Edwards / View from summit of Snowdon (1085m), Glaslyn and Llyn Llydaw. Snowdonia NP, Wales, UK, Europe

Peter Cairns / 2020VISION / Mawddach Estuary at low tide, Barmouth, Snowdonia National Park, Gwynedd, Wales, May 2012.

Peter Cairns / 2020VISION / Mawddach Estuary at low tide, Barmouth, Snowdonia National Park, Gwynedd, Wales, May 2012.

Peter Cairns / 2020VISION / Mawddach Estuary at low tide, Barmouth, Snowdonia National Park, Gwynedd, Wales, May 2012.

Peter Cairns / 2020VISION / Trees moving in high winds along the edge of the Mawddach Estuary, Snowdonia National Park, Gwynedd, Wales, UK, May 2012.

Graham Eaton / A landscape view of Clogwyngarreg, a small rocky outcrop near Beddgelert, Snowdonia NP, Wales, August.

Peter Cairns / 2020VISION / Dawn over Llynau Cregennen. Snowdonia National Park, Wales, May 2012.

Graham Eaton / Split level view of a fast flowing woodland stream, Maentwrog, Snowdonia NP, Gwynedd, Wales, UK, April

Graham Eaton / An underwater view of a woodland stream, River Glaslyn, Snowdonia NP, Gwynedd, Wales, UK, May

Graham Eaton / A split-level view of a calm woodland stream, Snowdonia NP, Gwynedd, Wales, UK, April

Graham Eaton / An underwater view of the River Glaslyn, with Green bubble algae (Tetraspora gelatinosa), Snowdonia NP, Gwynedd, Wales, UK, October

Graham Eaton / The underwater landscape within Afon Nant Peris, a mountain stream, Llanberis, Snowdonia NP, Gwynedd,Wales, UK, March

Graham Eaton / An underwater view of a mountain stream, showing water turbulence around rocks, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Underwater view of a mountain stream, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Long underwater exposure of a mountain stream, with Green algae (Chlorophyceae sp.) moving in the current, River Ogwen, Snowdonia NP, Gwynedd, Wales, UK, October 2009. Highly commended in Botanical Br...

Graham Eaton / View of the underwater landscape within a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK

Graham Eaton / An underwater view of a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Split-level image of a mountain stream flowing towards Tryfan, with Green algae (Chlorophyceae sp.) moving in the current, Snowdonia NP, Gwynedd, Wales, October

Graham Eaton / A split-level view of a stream beneath Pen yr Ole Wen, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Underwater view of a mountain stream, Snowdonia NP, Gwynedd, Wales, UK, November

Graham Eaton / Underwater landscape in Llyn Dinas, a mountain lake, surface covered in ice, and green lacustrine algae growing on the bottom, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Underwater landscape in Llyn Dinas, a mountain lake, with surface covered in ice, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Underwater landscape in Llyn Dinas, a mountain lake, at the point where it exits into a river, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / A split-level image of Afon Nant Peris,a small mountain stream, and the Llanberis Pass, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Split level shot of Llyn Idwal and Cwm Idwal, showing freshwater habitat with Green lacustrine algae (Chlorophyceae sp.), Snowdonia NP, Gwynedd, Wales, UK, August

Graham Eaton / Split level shot of Llyn Idwal, with Juncus grass, Snowdonia NP, Gwynedd, Wales, UK, May

Graham Eaton / Underwater view of a mountain lake, Llyn Idwal, Gwynedd, Snowdonia NP, Wales, UK, December

Graham Eaton / Underwater view of ice covering Llyn Idwal, a glacial tarn, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Underwater view of the landscape of a mountain lake, showing freshwater habitat, with Green algae (Chlorophyceae sp.), Llyn Idwal, Snowdonia NP, Gwynedd, Wales, UK, February

Graham Eaton / A split level image of Cwm Idwal and Llyn Idwal, a glacial tarn, showing freshwater habitat with Juncus grass and lacustrine algae, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / A split level image of Cwm Idwal and Llyn Idwal, a glacial tarn, showing freshwater habitat, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / A split level image of Cwm Idwal and Llyn Idwal, a glacial tarn, showing freshwater habitat, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / View of River Glaslyn, Snowdonia NP, Gwynedd, Wales, UK, May

Graham Eaton / A split level image of Cwm Idwal and Llyn Idwal, a glacial tarn, showing freshwater habitat with Green algae (Chlorophyceae sp.), Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / A split-level image of Llyn Gwynant, looking towards Yr Aran, Snowdonia NP, Gwynedd, Wales, UK, January

Graham Eaton / Underwater view of River Glaslyn rapids, Snowdonia NP, Gwynedd, Wales, UK, April

Graham Eaton / Underwater view of River Glaslyn, Snowdonia NP, Gwynedd, Wales, April

Graham Eaton / Split level image of a stream with Tryfan in the background, Snowdonia NP, Gwynedd, Wales, December

Graham Eaton / Underwater image of Green filamentous algae (Chlorophyceae sp.) in River Glaslyn, Snowdonia NP, Gwynedd, Wales, UK, November

Graham Eaton / River Glaslyn in winter, Beddgelert, Snowdonia NP, Gwynedd, Wales, UK, January

Graham Eaton / Cwm Bychan ropeway, a relic of the copper mining industry, Beddgelert, Snowdonia NP, Gwynedd, Wales, UK, April

Graham Eaton / View from the summit of Tryfan over temperature inversion clouds, with summit rocks Adam and Eve in the foreground, Snowdonia NP, Gwynedd, Wales, UK, March

Graham Eaton / Underwater view of a fast flowing stream, showing undercut bank on the outside of a small meander, Snowdonia NP, Gwynedd, Wales, UK, February

Graham Eaton / Underwater view of a fast flowing stream, Snowdonia NP, Gwynedd, Wales, UK, February 2011

Graham Eaton / Underwater view of Llynnau Mymbyrl, a mountain lake, with ice on the surface, Snowdonia NP, Gwynedd, Wales, UK, January 2011

Graham Eaton / Underwater image of Green filamentous algae (Chlorophyceae sp.) in River Glaslyn, Snowdonia NP, Gwynedd, Wales, UK, November

Adrian Davies / Wild Cotoneaster (Cotoneaster integerrimus) growing in Snowdonia National Park, Wales, UK, September

Adrian Davies / Wild Cotoneaster (Cotoneaster integerrimus) growing in Snowdonia National Park, Wales, UK, September

Adrian Davies / Large mounds of Moss (Polytrichum commune) adjoining woodland, Snowdonia National Park, North Wales, UK, September

Graham Eaton / Under the ice scene of freshwater frozen lake habitat. Llyn Dinas, Snowdonia, Wales, December 2010.

Graham Eaton / Underwater view of a fast flowing stream channel, showing undercut bank on the outside of a meander. Snowdonia, Wales, February 2011.

Graham Eaton / Under the ice lake habitat view. Llynnau Mymbyrl, Snowdonia, Wales, January 2011.

Graham Eaton / A split level underwater view of Juncus Grass at lake margin. Llyn Dinas, Snowdonia, Wales, January 2011.

Graham Eaton / Llyn Ogwen, frozen in winter. Snowdonia National Park, Bethesda, Wales, December 2010.

Graham Eaton / Llynnau Mymbyr in ice and fog. Capel Curig, Snowdonia, Wales, December 2010.

Graham Eaton / Underwater scene of freshwater lake habitat. Llyn Dinas, Snowdonia, Wales, December 2010.

Graham Eaton / Llyn Idwal, lake underwater, Snowdonia NP, North Wales, UK, December

Graham Eaton / Underneath the ice of Llyn Dinas lake, Snowdonia NP, Wales, December

Graham Eaton / View of Afon Glaslyn gorge, Bedgellert, Snowdonia NP, Wales, May 2010.

Graham Eaton / William Pitt Rock, Beddgelert, Snowdonia National Park, Gwynedd, Wales, UK, February 2010.

Graham Eaton / A 'glacial erratic' or boulder deposited by retreating ice, outside Cwm Idwal, Snowdonia National Park, Wales, January 2009

Graham Eaton / An underwater view of a mountain stream showing internal reflections on the water surface, Snowdonia NP, Gwynedd, Wales, UK, December 2009.