Richard Du Toit / Aerial Photograph of Lake Sibaya / Sibhayi, KwaZulu-Natal Province, South Africa, Indian Ocean, June 2010

Doug Perrine / Hawaiian monk seals (Monachus schauinslandi) aggressive male attacks a five and a half week pup, mother (right) approaches to intervene; Papaloa Beach, Kalaupapa, Molokai, Hawaii, USA

Michael Pitts,Michael Pitts / Coconut palms (Cocos nucifera) with the moon rising, Tobago, Caribbean.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) looking out to sea on sandy beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Mike Read / Gentoo penguin (Pygoscelis papua) standing on a sandy beach, Falkland Islands

Ernie Janes / Dalmation dogs playing on beach, Norfolk, UK, August

Luiz Claudio Marigo / Itacarezinho Beach, in the municipality of Itacar, southeastern Bahia State. Brazil, August 2010

Billy Black / Distant figures with kayak on Sandy Island, near Carriacou Island, the Grenadines, Caribbean, January 2010.

Onne van der Wal / 30ft Tiki catamaran "Abaco" pulled up near sand bank in the Exumas, Bahamas, Caribbean. June 2009. Property released.

Onne van der Wal / Crystal clear shallows under a blue sky. Exumas, Bahamas, Caribbean, June 2009.

Guy Edwardes / Sea belt kelp (Laminariales) lying on sandy beach, Balnakeil Bay, Durness, Sutherland, Scotland, May 2007

Sue Flood / Woman tourist relaxing in hammock on tropical beach, Deadman's Bay, Peter Island, British Virgin Islands, April 2008, Model released