Peter Cairns / Reynisdrangar sea stacks at dusk, Vik, Iceland

Erlend Haarberg / Londrangar sea stacks, Snaefellsnes peninsula, Iceland, February 2011

Erlend Haarberg / Northern fulmar (Fulmarus glacialis) in flight in snow storm, Iceland, April

Erlend Haarberg / Northern gannet (Morus bassanus) colony on a sea stack and seabird cliff, Langanes peninsula, Iceland, July

Brent Stephenson / Australasian Gannet (Morus serrator) breeding colony above sea stacks. Muriwai, Auckland, New Zealand, November.

Inaki Relanzon / Cliffs and sea-stacks on the coast of "El Hierro" Island. Canary Islands, February 2011.

Matthew Maran / A man looking out to sea by coastal rock stacks. The West Coast Trail, Pacific Rim National Park, Vancouver Island, Canada, September 2010. Model released.

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Guy Edwardes / Reynisdrangur stacks and black sand beach Vik i Myrdal at night, Iceland, June 2009

Wild Wonders of Europe / Muñoz / Traigh Ghearadha beach, north east Lewis, Outer Hebrides, Scotland, UK, June 2009

Jack Dykinga / Silhouette of sea stacks at sunset with patterns in the sand left by the receding tide, Second Beach, Olympic Peninsula, Olympic National Park, Washington, USA

Wild Wonders of Europe / Relanzó / Wild coast with sea stacks on a stormy day, Benijo, Anaga Peninsula, North East Tenerife, Canary Islands, Spain, December 2008 WWE BOOK. WWE INDOOR EXHIBITION

Wild Wonders of Europe / Relanzón / Coast on a stormy day, Benijo, Anaga Peninsula, North East Tenerife, Canary Islands, Spain, December 2008

Ross Hoddinott / Old Harry Rocks, in early morning light and stormy sky, The Purbecks, Dorset, UK. May 2012.

Ross Hoddinott / Old Harry Rocks, in early morning light and stormy sky, The Purbecks, Dorset, UK. May 2012.

Staffan Widstrand / Mimmi Widstrand near rauk / stack on beach at sunset, Faro, Gotland, Sweden's largest island August 2010 Model released

Philippe Clement / The eroded chalk sea stack The Pinnacles near Old Harry Rocks at Handfast Point on the Isle of Purbeck along the Jurassic Coast in Dorset, UK November 2012

Philippe Clement / The eroded chalk sea stack The Pinnacles near Old Harry Rocks at Handfast Point on the Isle of Purbeck along the Jurassic Coast in Dorset, UK November 2012

Philippe Clement / Pulpit Rock, artificial stack of rock left by quarrying activity, on seashore at Portland Bill on the Isle of Portland along the World Heritage Jurassic Coast, Dorset, UK, November 2012

Philippe Clement / The eroded chalk sea stacks Old Harry Rocks at Handfast Point on the Isle of Purbeck along the World Heritage Site Jurassic Coast in Dorset, UK, November 2012

Philippe Clement / The eroded chalk sea stacks Old Harry Rocks at Handfast Point on the Isle of Purbeck along the World Heritage Site Jurassic Coast in Dorset, UK, November 2012

Peter Cairns / Sea stacks at Reynisdrangar at dusk, Iceland.

Peter Cairns / Sea stacks at Reynisdrangar at dusk, Iceland.

Erlend Haarberg / The Londrangar sea stacks at Snaefellsnes Peninsula, Iceland February 2011

David Noton / The moon over the eroded coastline of the Twelve Apostles at dusk, Port Campbell National Park, Great Ocean Road, Victoria, Australia. February 2006.

David Noton / Eroded coastline near Loch Ard Gorge, Port Campbell National Park, Great Ocean Road, Victoria, Australia. February 2006.

David Noton / The Old Man of Stoer sea stack, Sutherland, Scotland, February 2012.

David Noton / The Old Man of Stoer sea stack, Sutherland, Scotland, February 2012.

Philippe Clement / The sea stack L'Aiguille and the Porte D'Aval, a natural arch in the chalk cliffs at Etretat, Côte d'Albâtre, Upper Normandy, France, March

Erlend Haarberg / Northern gannet (Morus bassanus) breeding colony, Syltefjordstauran, Syltefjord, Varanger peninsula, Norway, May 2005

Erlend Haarberg / Coastal rocks including an arch in winter storm, Arnarstapi, Snaefellsnes peninsula, Iceland, January 2011

Erlend Haarberg / Londrangar sea stacks and the Snaefellsjokull mountain under northern lights, Snfellsnes Peninsula, Iceland, February 2011

Erlend Haarberg / The Londrangar sea stacks, Snaefellsnes peninsula, Iceland, February 2011

Orsolya Haarberg / Gatklettur arch and Arnarstapi sea stacks in winter storm, Snaefellsnes Peninsula, Iceland, February 2011

Erlend Haarberg / Northern gannet (Morus bassanus) colony on a sea stack, Seabird cliff, Langanes peninsula, Iceland, July

Merryn Thomas / Coastal Path near Bantham Bay, with narrow rock stack, and Burgh Island in the distance. South Devon, UK. January 2009.

Philippe Clement / Sea stacks at the Plage des Cinq Pineaux at low tide, Saint-Hilaire-de-Riez, La Vendée, Pays de la Loire, France September 2011

Philippe Clement / Sea stacks at the Plage des Cinq Pineaux at Saint-Hilaire-de-Riez, La Vendée, Pays de la Loire, France September 2011

Eric Baccega / Tourists on the beach near Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September

Angelo Gandolfi / View of Bonifacio town, and limestome cliffs. Corsica island, France, February 2010

Angelo Gandolfi / View of the white cliffs of Bonifacio. The large boulder (right) fell from the main block 800 years ago. It's called "grain de sable" (grain of sand). Corsica island, France, February 2010

Floris van Breugel / Dawn view of Sea stacks and caves, at Bandon Beach, along the coast of Oregon, USA. June 2008

Sue Daly / Coastal landscape, West coast of Sark, Channel Isles, UK, 2009

Kirkendall-Spring / Sunrise at Cannon Beach with Haystack Rock at the oceans edge. Oregon, USA, November 2009

Wild Wonders of Europe / Radisics / African daisy (Arctotis hybrids) plants flowering, Ponta de Sao Lourenco, Madeira, March 2009

Wild Wonders of Europe / Muñoz / Large rocks sticking out of sea, Traigh Ghearadha beach, north east Lewis, Outer Hebrides, Scotland, UK, June 2009.

Guy Edwardes / Wavecut under red sandstone cliffs at Ladram Bay, Jurassic Coast World Heritage Site, Devon, England, October 2007

Wild Wonders of Europe/ Bartocha / Pizzomuno stack and limestone cliffs, Vieste, Gargano National Park, Gargano Peninsula, Apulia, Italy, May 2008

Orsolya Haarberg / The sea stacks of Reynisdrangar at Vik in storm. Iceland. June 2008

Wild Wonders of Europe / O. Haarberg / Sea stacks of Reynisdrangar during a storm, Vik, Iceland, June 2008

Wild Wonders of Europe/ Bartocha / Pizzomuno stack and limestone cliffs, Vieste, Gargano National Park, Gargano Peninsula, Apulia, Italy, May 2008

Merryn Thomas / View from coastal Path near Bantham Bay, with narrow rock stack, and Burgh Island in the distance. South Devon, UK. January 2009.

Philippe Clement / The Aval cliff, its arch and the needle at Etretat, Normandy, France

Juan Carlos Munoz / Coastal landscape near Eshaness, W Shetland Islands, Scotland, UK

Jouan & Rius / The Twelwe Apostles at sunrise, Campbell NP, Victoria, Australia

Konrad Wothe / Two hikers walk on beach with sea stacks, Olympic National Park, Washington

Benoit Stichelbaut / The fort and Sarah Bernhardt Museum on Pointe des Poulains, Belle-Ile en Mer, Morbihan, Brittany, France. July 2008.

Tim Fitzharris / Whaleshead Beach with sea stacks, Oregon

Jouan Rius / Quida Stacks in Ronas Voe, Shetland Islands, Scotland, UK

Inaki Relanzon / Town of Vik, South Coast of Iceland

Paul Hobson / Sea rock/ stack arch near the 12 Apostles, South Australia, Australia

Peter Lewis / The Pinnacles, Studland, Dorset, UK, at dawn,

Peter Lewis / The Pinnacles, Studland, Dorset, UK, at dawn,

Peter Lewis / Cliffs and sea stacks just after sunrise at Freshwater Bay, Isle of Wight, Hampshire, UK,

Peter Lewis / Cliffs and sea stacks just after sunrise at Freshwater Bay, Isle of Wight, Hampshire, UK,

Juan Manuel Borrero / Boats moored in a bay in Columbretes Island Natural Park, Castellon, Spain

Juan Manuel Borrero / Boats moored in a bay in Columbretes Island Natural Park, Castellon, Spain

Juan Manuel Borrero / Boats moored in a bay in Columbretes Island Natural Park, Castellon, Spain

Theo Allofs / Daisies along coastline with sea stacks in background, Redwood National Park, California

Kirkendall-Spring / View of sea stacks on the Pacific Coast, Olympic NP, Washington, USA

Juan Manuel Borrero / Stacks on the Pacific coast, Paracas National Reserve, Peru

Michael Durham / Irregular basalt projections and sea stacks on Cannon Beach, Oregon

Mike Wilkes / The Needles, chalk rock sea stacks in Alum Bay, Isle of Wight, UK

Tim Fitzharris / Sea stacks at dusk along Bandon Beach with rising moon, Oregon

Tim Fitzharris / Sea stacks at dusk along Bandon Beach, Oregon

Tui De Roy / Northern Gannet (Morus bassanus) enormous and expanding nesting colony on sea stacks and cliffs, Hermaness, Shetland Islands, United Kingdom

Tui De Roy / Northern Gannet (Morus bassanus) enormous and expanding nesting colony on sea stacks and cliffs, Hermaness, Shetland Islands, United Kingdom

Tui De Roy / Northern Gannet (Morus bassanus) enormous and expanding nesting colony on sea stacks and cliffs, Hermaness, Shetland Islands, United Kingdom

Tui De Roy / Northern Gannet (Morus bassanus) enormous and expanding nesting colony on sea stacks and cliffs, Hermaness, Shetland Islands, United Kingdom

Tui De Roy / Northern Gannet (Morus bassanus) enormous and expanding nesting colony on sea stacks and cliffs, Hermaness, Shetland Islands, United Kingdom

Tui De Roy / Osprey (Pandion haliaetus) nests on sea stacks, Gulf Coast, Sea of Cortez, Mexico

David Welling / Sea stacks at sunset, Second Beach, Olympic NP, Washington, USA

Dave Watts / The Twelve Apostles at sunset, Victoria, Australia

Fred Bavendam / Little Blue Penguin (Eudyptula minor) pioneers arrive on beach in front of Twelve Apostles sea stacks, Port Campbell, Victoria, Australia

Fred Bavendam / Vegetation and wildflowers at edge of Little Blue Penguin colony, with beach and Twelve Apostles sea stacks beyond, Port Campbell, Victoria, Australia

Tui De Roy / Southwest promontory and adjacent sea stacks, Snares Islands, New Zealand

Tui De Roy / Southwest promontory and adjacent sea stacks, Snares Islands, New Zealand

Nick Upton / Sail rock, Kenting, Taiwan

Tim Edwards / Limestone cliffs and sea stacks. Port Campbell NP, Victoria, Australia

Roberto Rinaldi / Coastline of Lipari, Aeolian islands, Italy. In the background is Vulcano, smoking.

Roberto Rinaldi / Lipari coastline, Aeolian islands north of Sicily, Italy. In the background is Vulcano (also part of the aeolian islands).

Roberto Rinaldi / Coastline of Lipari, Aeolian islands, Italy. In the back ground Vulcano (also part of the aeolian islands).