Andrew Parkinson / Mute swan (Cygnus olor) adult emerges serenely from a thick mist into dawn sunlight, Derbyshire, UK, May.

Jeff Rotman / Free diver exploring blue water beside coral reef, Sinai, Egypt, Red Sea Model released Model released.

Stephen Dalton / Concentric ripples on water, with single petal, UK

Tim Fitzharris / Field of sunflowers, Flint Hills National Wildlife Refuge, Kansas

Jose B. Ruiz / Woman walking along beach with parasol. Playa Poniente, Benidorm, Spain.

Flip de Nooyer / Coastal fog hugs cliffs along Elsehul Bay, South Georgia Island