Graham Eaton / An eye hole eroded into dipping Carboniferous age Sandstones and Shales. Hartland Quay, Devon, UK, May

Graham Eaton / Speke's Mill Mouth waterfall near Hartland Quay, Devon, UK, March

Graham Eaton / Speke's Mill Mouth waterfall near Hartland Quay, Devon, UK, March. The waterfall flows down near vertical beds of Carboniferous sandstone.

Graham Eaton / A small waterfall on the coast at the side of St Catherine's Tor, near Hartland Quay, Devon, UK, March

Graham Eaton / An eroded synclinal fold exposed Carboniferous age sandstones and shales. Hartland Quay, Devon, UK, May

Juan Carlos Munoz / Cargadero de Dicido, a mineral loading dock in the Cantabrian Sea, Miono, Castro Urdiales, Cantabria, Spain. December 2017.

Gary K. Smith / View of the Quay at Wells Next the Sea showing moored fishing boats and the east end harbour. Wells Next the Sea, Norfolk, England, UK. June 2017.

Ross Hoddinott / Pink thrift (Armeria maritima) growing along the coastal cliff tops, Hartland Quay, North Devon, UK. May 2017.

Enrique Lopez-Tapia / People at dock in fishing village of Cacheu, at sunset, Cacheu River, Guinea Bissau, February 2015.

Oriol Alamany / Island Trader ship carrying goods to Lord Howe island, Lord Howe Island Group UNESCO Natural World Heritage Site, New South Wales, Australia, October 2012.

Philippe Clement / Stacked lobster creels / traps on quay in the Plockton Harbour, Scottish Highlands, Scotland, UK, September 2016

Martin Gabriel / Sur, a city at the coast of Oman, with mosques and a traditional dock for the construction of wooden boats, Sultanate of Oman, February.