Merryn Thomas / Children playing on beach with coastline at Porth Nefyn, Llyn Peninsula, Gwynedd, Wales. July 2013.

Merryn Thomas / Coastal houses and view of bay at Porthdinllaen (English Porth Dinllaen), Llyn Peninsula, Gwynedd, Wales. July 2013.

Merryn Thomas / Houses on the beach at Porthdinllaen / Porth Dinllaen, Llyn Peninsula, Gwynedd, Wales. July 2013.

Merryn Thomas / Coastal housing in Porthdinllaen (English Porth Dinllaen), Llyn Peninsula, Gwynedd, Wales. July 2013.

Merryn Thomas / Children on beach at Porth Nefyn, Llyn Peninsula, Gwynedd, Wales. July 2013.

Graham Eaton / Little Grebe (Tachybaptus ruficollis) on water with juvenile Grey Mullet (Chelon labrosus). Bangor, Gwynedd, Wales. December.

Graham Eaton / Little Grebe (Tachybaptus ruficollis) silhouetted on golden water at sunset. Gwynedd, Wales. December.

Graham Eaton / Little Grebe (Tachybaptus ruficollis) on water with juvenile Grey Mullet (Chelon labrosus). Bangor, Gwynedd, Wales. December.

Graham Eaton / Bottlenose dolphins (Tursiops truncatus) swimming along the coast of the Llyn Peninsular, towards St Tudwals Islands, near Abersoch, Gwynedd, May 2015

Graham Eaton / Bottlenose dolphin (Tursiops truncatus) swimming along the coast of the Llyn Peninsular, near Abersoch, Gwynedd, May 2015

Graham Eaton / Common Horsetail (Equisetum arvense) growing on the Llyn Peninsular coast, near Nefyn, North Wales

Graham Eaton / Two Herring gulls (Larus argentatus) fighting over territory, Abersoch, Gwynedd, Wales, June.

Graham Eaton / Two Herring gulls (Larus argentatus) fighting over territory, Abersoch, Gwynedd, Wales, June.

Graham Eaton / Surfer entering the sea with large waves breaking over the jetty during an easterly gale, Criccieth, Gwynedd, North Wales, September 2013.

Graham Eaton / Surfer entering the sea with large waves breaking on the jetty during an easterly gale, at Criccieth, Gwynedd, North Wales, September 2013.

Graham Eaton / Large waves breaking over the jetty during an easterly gale, Criccieth, Gwynedd, North Wales, September 2013.

Graham Eaton / Large waves impacting the jetty during an easterly gale, Criccieth, Gwynedd, North Wales, September 2013.

Graham Eaton / Iron age hut circle, within the Tre'r Ceiri Hill Fort, above Nefyn, Gwynedd, Wales, September 2013.

Graham Eaton / Hut circle groups within the Iron Age hill fort, Tre'r Ceiri near Yr Eifl, above Nefyn, Gwynedd, Wales, September 2013.

Graham Eaton / Hut circle groups within the Iron Age hill fort, Tre'r Ceiri near Yr Eifl, above Nefyn, Gwynedd, Wales, September 2013.

Graham Eaton / Two Shannies (Lipophrys pholis) in a tidepool with barnacles on rock, Nefyn, Gwynedd, Wales, July.

Graham Eaton / Rhisostome / Barrel jellyfish (Rhizostoma octopus) stranded on a sandy beach, Abersoch, Gwynedd, Cardigan Bay, Wales, April.

Mike Potts / Guillemot (Uria aalge) pair with chick, Lleyn Peninsula, Gwynedd, Wales, UK, July.

Mike Potts / Guillemot (Uria aalge) adult with chick, Leyn Peninsula, Gwynedd, Wales, UK, July.

Mike Potts / Guillemot (Uria aalge) chick, Leyn Peninsula, Gwynedd, Wales, UK, July.

Mike Potts / Guillemot (Uria aalge) pair with chick, Leyn Peninsula, Gwynedd, Wales, UK, July.

Mike Potts / Guillemot (Uria aalge) adult with chick, Leyn Peninsula, Gwynedd, Wales, UK, July,

Mike Potts / Guillemot (Uria aalge) adult with chick, Leyn Peninsula, Gwynedd, Wales, UK, July.

Mike Potts / Guillemot (Uria aalge) group of adults with chick, Leyn Peninsula, Gwynedd, Wales, UK, July.

Mike Potts / Guillemot (Uria aalge) group with chicks, Leyn Peninsula, Gwynedd, Wales, UK, July.

Mike Potts / Guillemot (Uria aalge) group of adults protecting chick, Leyn Peninsula, Gwynedd, Wales, UK, July.

David Woodfall / Colourful flowers including Sunflowers, Cornflowers and Marigolds surrounding Iron Age roundhouse to benefit bees. Felin Uchaf, Aberdaron, Gwynedd, North Wales, UK. August.

David Woodfall / Colourful flowers including Sunflowers, Cornflowers, Pink Cosmos and Marigolds, surrounding Iron Age roundhouse to benefit bees. Felin Uchaf, Aberdaron, Gwynedd, North Wales, UK. August.

David Woodfall / Colourful flowers including Sunflowers and White Cosmos flowers, surrounding Iron Age roundhouse to benefit bees. Felin Uchaf, Aberdaron, Gwynedd, North Wales, UK. August 2014.

David Woodfall / Colourful flowers including Cosmos, Sunflowers and Marigolds, surrounding Iron Age roundhouse to benefit bees. Felin Uchaf, Aberdaron, Gwynedd, North Wales, UK. August 2014.

David Woodfall / Bumblebee (Bombus) on Cosmos flower, Felin Uchaf, Aberdaron, Gwynedd, North Wales, UK. August.

David Woodfall / Bumblebee (Bombus) on Cosmos flower,Felin Uchaf, Aberdaron, Gwynedd, North Wales, UK. August.

David Woodfall / Male and female Hoverflies (Syphrus) on Pink Cosmos flower, sownto attract bees and other insects. Outside Wales Environment Centre, Bangor, Gwynedd, North Wales

David Woodfall / White and pink cosmos flowers planted to help bee conservation outside Wales Environment Centre, Bangor University, Bangor Gwynedd North Wales, UK. September 2014.

Peter Cairns / 2020VISION / Timelapse of rainsweeping across the Mawddach Estuary, Gwynedd, Wales, June 2012.

Mike Potts / Shelduck (Tadorna tadorna) Adult pair with brood of ducklings on sea. Bardsey Island, Gwynedd, North Wales, UK.

Mike Potts / Guillemots (Uria aalge) colony on clifftop with chicks, Puffin Island, Gwynedd, North Wales, UK.

Mike Potts / Shelduck (Tadorna tadorna) adult pair with brood of ducklings on sea. Bardsey Island, Gwynedd, North Wales, UK.

Mike Potts / Atlantic Grey Seal (Halichoerus grypus) single adult resting on rocks at high tide. Bardsey Island, Gwynedd, North Wales, UK.

Mike Potts / Atlantic Grey Seal (Halichoerus grypus) single adult resting on rocks at high tide. Bardsey Island, Gwynedd, North Wales, UK.

Mike Potts / Guillemots (Uria aalge) colony on clifftop with chicks, Puffin Island, Gwynedd, North Wales, UK.

Mike Potts / Puffin (Fratercula arctica) small group on the sea, off Puffin Island, Gwynedd, North Wales, UK.

Mike Potts / Puffin (Fratercula arctica) small group on the sea, off Puffin Island, Gwynedd, North Wales, UK.

Richard Steel / 2020VISION / Male Pied flycatcher (Ficedula hypoleuca) with insect prey, Gwynedd, Wales, UK, June.

Richard Steel / 2020VISION / Male Goosander (Mergus merganser) landing on water, Gwynedd, Wales, UK, February.

Richard Steel / 2020VISION / Female Goosander (Mergus merganser) swimming on lake, Gwynedd, Wales, UK, February.

Richard Steel / 2020VISION / Male Goosander (Mergus merganser) swimming on lake, Gwynedd, Wales, UK, January.

Richard Steel / 2020VISION / Female Goosander (Mergus merganser) swimming on lake, Gwynedd, Wales, UK, January.

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.

Doug Wechsler / Citrus flatid planthopper (Metcalfa pruinosa) on Goldenrod (Solidago), Gwynedd Wildlife Preserve, Pennsylvania, USA, July.

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

Graham Eaton / Waves at Porth Oer, Whistling sands, Aberdaron, Wales, November

Graham Eaton / Wave breaking s at Porth Oer, Whistling sands, Aberdaron, Wales, November

Graham Eaton / Waves at Porth Oer, Whistling sands, Aberdaron, Wales, November

Graham Eaton / Waves at Porth Oer, Whistling sands, Aberdaron, Wales, November

Graham Eaton / Pebbles of semi-precious Jasper, Quartz SiO2, in shingle on a beach, Aberdaron, Wales. The jasper is present in the rocks associated with an ancient plate boundary. July

Graham Eaton / Sunset at Hells Mouth beach, Abersoch, Wales, November

Mike Potts / Wildflowers on an ancient bank next to track, Bardsey Island, North Wales, UK, August 2012

Mike Potts / Hay making at a farm on Bardsey Island. North Wales, UK. August 2012.

Graham Eaton / A view down the axis of the Llyn Peninsular, from Mynydd Rhiw near Aberdaron. The mountains represent the vents of a chain of ancient volanoes. Wales, September 2012.

Graham Eaton / A split level image of Llyn Idwal, Snowdonia, with the Idwal Slabs in the background. Gwynedd, Wales, September 2011.

Graham Eaton / A view northwards along the Llyn Peninsula from Anelog, showing the coastal footpath. Near Aberdaron, Gwynedd, Wales, August 2011.

Alan Williams / Grass moorland on Denbigh Moors with Snowdon mountain range showing in background North Wales, UK, April

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 with ice and a quartz boulder, Llyn Idwal, Snowdonia National Park, Gwynedd, Wales, UK, December

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