Ernie Janes / Sea defences along the beach at Walcott, Norfolk, UK, Winter

Ernie Janes / Silhouette of fisherman digging for lugworms on Hunstanton Beach at low tide, The Wash, Norfolk, UK, September

Ross Hoddinott / Groyne and view looking out to sea at dawn, Swanage Bay, Dorset, UK. April 2009.

Gary K. Smith / Waves breaking on groynes, looking towards Mundesley, North Norfolk, Uk

Philippe Clement / Breakwater covered in green seaweed (Cladophora rupestris) along the North Sea coast, Belgium

Philippe Clement / Breakwater covered in green seaweed (Cladophora rupestris) along the North Sea coast, Belgium

Philippe Clement / Mass of Razor Shells (Ensis siliqua) washed ashore along breakwater, North Sea, Belgium

Gary K. Smith / Wrack seaweed on old sea defences at low tide, Norfolk, UK

Gary Smith / Wooden groynes - method of coastal defense against erosion - with choppy sea in sunshine, Norfolk, Uk

Erwan Quéméré / Beach huts at Mers les Bains, Picardie, France.