Guy Edwardes / Rocky shore at Kimmeridge Bay with Clavell Tower in background, Isle of Purbeck, Jurassic Coast, Dorset, England, UK. December 2010.

Guy Edwardes / Rocky shore at Kimmeridge Bay with Clavell Tower in background, Isle of Purbeck, Jurassic Coast, Dorset, England, UK. December 2010.

Yva Momatiuk & John Eastcott / Rocky coastline, Hvalfjordur Fjord, Iceland

Frederique Olivier / Two King penguins (Aptenodytes patagonicus) walking along the shore, shot tilts up from feet to head, Macquarie Island, Sub-Antarctic Australia.

Cyril Ruoso / South american sea lion (Otaria byronia) and American fur seal (Arctocephalus australis) hauled out on the shore of Punta Coles Reserve, Peru.

Markus Varesvuo / Spotted Redshank (Tringa erythropus) standing on rocky shore, stretching wings, Uts, Finland, Scandinavia, August.

Ben Cranke / Gentoo Penguins (Pygoscelis papua) jumping across rocky shore, Cuverville Island, Antarctic Peninsula, Antarctica

Tim Fitzharris / Ruby Beach, Olympic National Park, Washington

Matthew Maran / Dramatic seas crashing onto a rocky shore. The Broken Group Islands from The Wild Pacific Trail, Ucluelet, West coast of Vancouver Island, Canada, September 2010.

Juan Carlos Munoz / Group of South American fur seals (Arctocephalus australis) swimming near the rocky shore. Puerto Deseado, Patagonia, Argentina, March 2008

Wild Wonders of Europe / Quinta / Waves breaking on rocky shore, Natural Park of South West Alentejano and Costa Vicentina, Portugal, June 2009

Scott Leslie / Coastline in fog, Cape Breton Island, Nova Scotia, Canada