Peter Lewis / Neist Point and Lighthouse at sunset, Isle of Skye, Scotland, UK

Kirkendall-Spring / Sea surf against sandstone cliffs and rock formationa on the shore at Cape Kiwanda State Park, Oregon, USA

Kirkendall-Spring / Sea stack studded beach, Bandon, Oregon, USA

Ross Hoddinott / Porth Nanven, nr St Just, Cornwall, UK - important example of quaternary geopmorphology: a raised Boulder beach, overlain by a considerable thickness of 'Head' deposits which demonstrates changes of s...

Ross Hoddinott / Bedruthan Steps on Cornish coast, with flowering Thrift (Armeria maritima), Cornwall. UK

David Noton / Gannets in flight over the beach at Muriwai, west coast of North Island, New Zealand

Jack Dykinga / Sea stars on rocks amongst surf at low tide, Fourth beach, Olympic peninsula, Olympic NP, Washington, USA

David Noton / Dusk at Cligga Point, Cornwall. England.

David Noton / Lighthouse and rough seas at Godrevy Point, Cornwall, England

Gavin Hellier / The Twelve Apostles at dusk, The Great Ocean Road, Victoria, Australia

Tui De Roy / Atacama Desert, weather beaten sea cliffs and Pacific Ocean, Paracas Peninsula, Peru

Pete Oxford / Antofagasta, Atacama Desert coastal landscape, Chile, South America

David Noton / Sunrise at Scabbacombe, Devon, England.

David Noton / The beach at Durdle Dor, Dorset, England.

David Noton / Dawn, Old Harry and his wife. The Foreland, Studland, Dorset. English coastal scene.

Pete Oxford / Kicker Rock, Galapagos

Doug Allan / Ice cliffs of the Ross ice shelf, Antarctica

Martin Gabriel / Waves breaking against rock cliff off Cape Formentor, Mallorca, Spain

Peter Lewis / View along the cliffs to Sea Town and the Golden Cap, Dorset, England, UK, May.

Nigel Cattlin / Tourists and boats at Maya Beach, limestone rock cliffs in background. Koh Phi Phi Leh, Krabi Province, Thailand. 2015.

Juan Carlos Munoz / Cliffs of Arnuero above Cantabrian Sea in evening light, aerial view. Transmiera Ecopark, Santona, Victoria and Joyel Marshes Nature Reserve, Cantabria, Spain. June 2019.

Juan Carlos Munoz / Cliffs of Arnuero above Cantabrian Sea in evening light, aerial view. Transmiera Ecopark, Santona, Victoria and Joyel Marshes Nature Reserve, Cantabria, Spain. June 2019.

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Common murre/ guillemot (Uria aalge) and Black-legged kittiwake (Rissa tridactyla). Gannet (Morus bassanus) colony on opposite c...

Mike Potts / Coastal cliffs topped with snow and ice. East coast of Buckle Island, Balleny Islands, East Antarctica. January 2018.

Gabriel Rojo / Gentoo penguin (Pygoscelis papua) breeding colony amongst cliffs. Hannah Point, Livingston Island, South Shetlands, Antarctica. January 2006.

Juan Carlos Munoz / Coastline with rocky cliffs, San Julian beach, Liendo, Cantabria, Spain. December 2014.

Mike Read / Sandstone and mudstone shale cliffs from top of Maer cliff. On southwest coast path, Bude, Cornwall, England, UK. August 2018.

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Black-legged kittiwake (Rissa tridactyla). Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Common murre / guillemot (Uria aalge). Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man collecting seabird eggs including those of Common murre / guillemot (Uria aalge). Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man being lowered down steep cliff face to collect seabird eggs, including those of Common murre / guillemot (Uria aalge). Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Black-legged kittiwake (Rissa tridactyla) and Common murre / guillemot (Uria aalge). Skoruvikurbjarg cliffs, Langanes Peninsula,...

Terry Whittaker / Man being lowered over cliff edge to collect seabird eggs. Pile of eggs on cliff top including those of Common murre / guillemot (Uria aalge). Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May...

Terry Whittaker / Two men on cliff top with Common guillemot / murre (Uria aalge) eggs collected from cliff face. Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man preparing to be lowered down cliff to collect seabird eggs from Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Common murre / guillemot (Uria aalge). Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Common murre / guillemot (Uria aalge) breeding colony. Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May.

Rick Price / Sandy beach with coastal cliffs in background. Tranquil Bay and Koolama Bay, The Kimberley, Western Australia. 2015.

Juan Carlos Munoz / Limestone pavement overlooking Galway Bay. Dun Duchathair / Black Fort Cliffs. Inishmore, Aran Islands, County Galway, Republic of Ireland. May 2011.

Juan Carlos Munoz / Limestone pavement overlooking Galway Bay. Dun Duchathair / Black Fort Cliffs. Inishmore, Aran Islands, County Galway, Republic of Ireland. May 2011.

Graham Eaton / Wave cut notch at the base of a sea cliff, Burton Bradstock, Dorset, UK. The notch is eroded at beach level in cliffs of Jurassic, Bridport Sandstone. The notch will grow to a depth where the overlyin...

Edwin Giesbers / Coastline with tree covered cliffs. Akamas Peninsula National Park, Cyprus. April 2017.

Terry Whittaker / Kittiwake (Rissa tridactyla) carrying nesting material, Skoruvikurbjarg cliffs, Langanes Peninsula. Northeast Iceland. May.

Terry Whittaker / Gannets mating (Morus bassanus) at nesting colony on Skoruvikurbjarg cliffs above rough sea, Langanes Peninsula Northeast Iceland. May.

Terry Whittaker / Gannets (Morus bassanus) bringing seaweed to mate at nest in colony on Skoruvikurbjarg cliffs, above rough sea, Langanes Peninsula, Northeast Iceland. May.

Terry Whittaker / Gannets (Morus bassanus) flying from nesting colony on Skoruvikurbjarg cliffs above rough sea, Langanes Peninsula, Northeast Iceland. May.

Juan Carlos Munoz / Limestone cliffs. Krabi coast. Krabi province, Andaman Sea, Thailand,

Nick Upton / Overview of Three Cliffs Bay at dusk with Pennard Pill stream meandering across the beach to reach the sea at low tide, Penmaen, The Gower peninsula, Wales, UK, October 2018.

Sven Zacek / Aerial view of Baltic Sea coast and Baltic Klint cliffs in morning light. Harjumaa, Northern Estonia. May 2018.

John Waters / The Seven Sisters chalk cliffs. East Sussex, England, UK. November 2017.

John Waters / The Seven Sisters chalk cliffs. East Sussex, England, UK. November 2017.

Chris Gomersall / Sea cliffs on the Shiant Isles, showing basalt columns. The Minch, Outer Hebrides, Scotland. July 2016.

Chris Gomersall / Sea cliffs on the Shiant Isles, with nesting ledges of Common guillemots (Uria aalge). The Minch, Outer Hebrides, Scotland. July 2016.

Philippe Clement / Birdwatchers watching coastline with sea cliffs and stacks, home to breeding seabirds at Hermaness, Unst, Shetland Islands, Scotland, UK, May

Philippe Clement / Spectacular coastline with sea cliffs and stacks, home to breeding seabirds at Hermaness, Unst, Shetland Islands, Scotland, UK, May

Philippe Clement / Shingle beach and chalk cliffs along the North Sea coast at Yport, Normandy, France, June 2018

Philippe Clement / Sea stacks and cliffs at sunset at Eshaness / Esha Ness, peninsula in Northmavine on the island of Mainland, Shetland Islands, Scotland, UK, May 2018

Philippe Clement / Sea stacks and cliffs at sunset at Eshaness / Esha Ness, peninsula in Northmavine on the island of Mainland, Shetland Islands, Scotland, UK, May 2018

Tui De Roy / Nazca booby (Sula granti) flying with beak open, two boobies in background on rocky cliffs. Punta Suarez, Espanola Island, Galapagos. October 2015.

Philippe Clement / Wide-angle shot of sea cliffs and stacks, Hermaness NNR, Unst, Shetland Islands, Scotland, UK, May.

Philippe Clement / Wide-angle shot of sea cliffs and stacks, Hermaness NNR, Unst, Shetland Islands, Scotland, UK, May.

Philippe Clement / Wide-angle shot of sea cliffs and stacks, Hermaness NNR, Unst, Shetland Islands, Scotland, UK, May.

Philippe Clement / Sea stacks and cliffs at Eshaness, Northmavine, Shetland Islands, Scotland, UK, May.

Juan Carlos Munoz / Iberian ibex (Capra pyrenaica), herd on rocky cliffs, Maro-Cerro Gordo Cliffs Natural Area, Granada, Andalusia, Spain. January 2018.

Juan Carlos Munoz / Iberian ibex (Capra pyrenaica), two on cliffs, Maro-Cerro Gordo Cliffs Natural Area, Granada, Andalusia, Spain. January 2018.

Juan Carlos Munoz / Iberian ibex (Capra pyrenaica) on rocky clifftop, two headbutting one another. Maro-Cerro Gordo Cliffs Natural Area, Granada, Andalusia, Spain. January 2018.

Juan Carlos Munoz / Iberian ibex (Capra pyrenaica) standing on top of rock, Maro-Cerro Gordo Cliffs Natural Area, Granada, Andalusia, Spain. January 2018.

Guy Edwardes / Rhossili beach, Gower Peninsular, Gower, Wales, UK. June 2014

Guy Edwardes / Rhossili beach, Gower Peninsular, Gower, Wales, UK. June 2014

Guy Edwardes / Pebbles on Nash Point, Monknash Coast, Vale of Glamorgan, Wales, UK, June 2006.

Guy Edwardes / Pebbles on Nash Point, Monknash Coast, Vale of Glamorgan, Wales, UK, June 2006.

Guy Edwardes / Nash Point, Monknash Coast, Vale of Glamorgan, Wales, UK, June 2006.

Guy Edwardes / Sea Stacks and cave, Reykanesta, Reykjanes Peninsula, Iceland. March 2017

Guy Edwardes / Natural sea arch with long exposure of waves, Gatklettur, Arnarstapi, Iceland. December 2013

David Allemand / Sea stacks and cliffs in bay, Great Ocean Road, Victoria, Australia, June.

Ashley Cooper / Sunset over the sea cliffs of St Bees Head West, Cumbria, England, UK.

Ashley Cooper / Climber i on Sgurr Alasdair on the Cuillin Ridge, Isle of Skye, Scotland. March 2006

Ashley Cooper / Passengers on Zodiaks off the Russian research vessel, AkademiK Sergey Vavilov an ice strengthened ship on an expedition cruise to Northern Svalbard in front of the Aalkefjellet, sea bird nesting clif...

Ashley Cooper / Passengers on Zodiaks off the Russian research vessel, AkademiK Sergey Vavilov an ice strengthened ship on an expedition cruise to Northern Svalbard in front of the Aalkefjellet, sea bird nesting clif...

Ashley Cooper / Storm force southerly winds whip up the sea and batter the Orkney mainland coast, with waves crashing over the 80 foot cliffs of Mull Head on Deerness. October 2011

Ashley Cooper / Members of an expedition cruise to Antarctica in a Zodiac in Fournier Bay, Gerlache Strait, Antarctic Peninsula.

Ashley Cooper / Members of an expedition cruise to Antarctica in a Zodiac with sea kayaks, Fournier Bay, Gerlache Strait, Antarctic Peninsula.

Ashley Cooper / Members of an expedition cruise to Antarctica in a Zodiac with sea kayaks, Fournier Bay, Gerlache Strait, Antarctic Peninsula.

Ashley Cooper / Members of an expedition cruise to Antarctica sea kayaking and swimming in Paradise Bay, beneath Mount Walker, Antarctic Peninsula.

Ashley Cooper / Members of an expedition cruise to Antarctica sea kayaking in Paradise Bay beneath Mount Walker, Antarctic Peninsula. February 2014.

Ashley Cooper / Members of an expedition cruise to Antarctica sea kayaking in Paradise Bay beneath Mount Walker, Antarctic Peninsula. February 2014.

Ashley Cooper / Tourists from expedition cruise to Antarctica sea kayaking in Larson Harbour, Drygalski Fjord, South Georgia, Antarctica, February 2014.

Ashley Cooper / Woman standing next to the edge of collapsing coastal cliffs. She is at the location where her house used to before she was evacuated. Aldbrough, Yorkshire, England, East Coast, UK August 2013.

Ashley Cooper / Second World War pill box on the beach, this was originally on the cliffs above but fell due to coastline erosion. Aldbrough, Yorkshire, England, UK. August 2013.

Cyril Ruoso / Long tailed macaques (Macaca fascicularis) playing on cliffs, jumping into the sea near city, Thailand

Cyril Ruoso / Long tailed macaques (Macaca fascicularis) playing on cliffs above the sea wtih town buidings in background, Thailand

Guy Edwardes / Lichen covered cliffs at Eshaness, Shetland, Shetland Isles, Scotland, UK. August 2014.

David Fleetham / "Stella Maris Explorer" at anchor off Quiminatin Island, part of the Cuyo Archipelago just north of the Sulu Sea in the Philippines.

David Fleetham / "Stella Maris Explorer" at anchor off Quiminatin Island, part of the Cuyo Archipelago just north of the Sulu Sea in the Philippines.