Boscastle Harbour at sunset, Cornwall, England, United Kingdom, Europe

The Blocks (the ZigZag) breakwater at sunrise at the harbour of St. Monans in Fife, East Neuk, Scotland, United Kingdom, Europe

The Blocks (the ZigZag), breakwater at dawn at the harbour of St. Monans in Fife, East Neuk, Scotland, United Kingdom, Europe

View from the Breakwater to the city skyline across the Gulf, Abu Dhabi, United Arab Emirates, Middle East

Coastal defences at Hannafore Beach near Looe, Cornwall, England, United Kingdom, Europe

Restaurant overlooking the skyline across the Gulf, Abu Dhabi, United Arab Emirates, Middle East

Breakwater Cove and Fisherman's Wharf, Monterey, California, United States of America, North America

Rock breakwater to protect the Paseo Nuevo, San Sebastian, Bay of Biscay, province of Gipuzkoa, Basque Country, Spain, Europe

Cornet Castle, Saint Peter Port, Guernsey, Channel Islands, United Kingdom, Europe

Fishing boats below Cornet castle, Saint Peter Port, Guernsey, Channel Islands, United Kingdom, Europe

View towards Archirondel Tower, a coastal tower built in 1792, and St. Catherine Breakwater in the background, Jersey, Channel Islands, Europe

View towards Chapel on the Hermitage Rock and the breakwater from the Elizabeth Castle, Jersey, Channel Islands, Europe

Rock breakwater in sea at sunrise, Munkerup, Kattegat Coast, Zealand, Denmark, Scandinavia, Europe

Cornet Castle, Saint Peter Port, Guernsey, Channel Islands, United Kingdom, Europe

Breakwater at the rocky beach in the bay of Gjogv, Eysturoy Island, Faroe Islands

Riprap as a costal protection measure, Norderfriedrichskoog tidal flats, Nationalpark Schleswig-Holsteinisches Wattenmeer, Schleswig-Holstein Wadden Sea National Park, Eiderstedt peninsula, North Friesland region, Schleswig-Holstein, Germany, Europe

Dramatic sunrise over Lydgate Beach, breakwater and the ocean from the coast of Kauai with dark storm clouds and a distant rainfall; Kapaa, Kauai, Hawaii, United States of America

Sunrise From Lydgate Beach Park, Lydgate, Kauai, Hawaii, United States Of America

Foam and surf on a beach along the Atlantic coast, South Shields, Tyne and Wear, England

Sunrise From Lydgate Beach Park, Lydgate, Kauai, Hawaii, United States Of America

Sunrise over Lydgate Beach and the ocean from the coast of Kauai with a breakwater; Kapaa, Kauai, Hawaii, United States of America

Sunrise In Kapaa Looking Out Over Breakwater, Kapaa, Kauai, Hawaii, United States Of America

Colourful Resort Houses Along The Beach, Southwold, Suffolk, England

Rocks Along The Coast Of Lydgate Beach Park, Lydgate, Kauai, Hawaii, United States Of America