Claudio Contreras / Puente de Dios cascades, Tamasopo, Huasteca Region, Mexico, August

Jordi Chias / Woman snorkeller swimming inside lagoon Toau atoll, Tuamotu Archipelago, French Polynesia, Pacific Ocean.

Stephen Dalton / View to South Downs over farmland, Sussex, England, UK. October.

Constantinos Petrinos / Sunset reflected on the surface of the Aegean Sea on a calm day with a speedboat, Evia Island, Greece. July 2014.

Juergen Freund / Aerial view of Whitehaven Beach - a seven kilometre stretch of pure white sand, Coral Sea, Pacific Ocean, August 2011

Michael Pitts,Michael Pitts / Aerial of Kossol Passage, Kossol Reef, Palau Islands, North Pacific Ocean.

Gavin Hellier / Infinity pool at luxury resort along the South Coast, Bermuda, 2007. No release available.

Gavin Hellier / Infinity pool at luxury resort along the South Coast, Bermuda, 2007. No release available.

Nick Upton / Mourtia beach and bay with the southeast tip of Samos and Mount Mycale in Turkey's Dilek Peninsula National Park in the background, east coast of Samos, August 2011.

Alex Mustard / A split level view of shallow water and clouds in summer, Seven Mile Beach, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Inaki Relanzon / Woman and girl fishing on the beach. Morondava, Madagascar, Africa.

Inaki Relanzon / Ibon del Acherito, (Acherito Lake), surrounded by mountain peaks. Anso Valley, Pyrenees, Aragon, Spain, July 2007.