Best Award Winning Wildlife Photography of the Year 2017

Out of the Blue, by Nick Blake, Underwater photographer of the year, British winner

Kukulkan, one of the spectacular cenotes on Mexico’s Yucatán peninsula, is noted for its otherworldy light as sunbeams penetrate the darkness of the cave. Blake captured this diver in the centre of one of the beams.
Photograph: Nick Blake/Underwater Photographer of the Year 2017