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.

SCOTLAND: The Big Picture / Aerial image of Luskentyre Beach on the Isle of Harris, Scotland, UK, August.

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

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

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

Oriol Alamany / Norfolk Island pine trees (Araucaria heterophylla) near lagoon with Mount Lidgbird and Mount Gower in the background, Lord Howe island, Lord Howe Island Group UNESCO Natural World Heritage Site, New S...

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