The beauty, mystery and majesty of the deep blue sea has been captured in breath-taking fashion by the winners of an underwater photography competition.
Scuba Diving Magazine's annual Through Your Lens Underwater Photo Contest this year attracted 2,100 entries from all corners of the world.
And here we present the 13 snaps that wowed the judges the most.
They include a conceptual portrait of an octopus, a colourful underwater cave in Mexico and a mystical snap of a whale in Tonga that appears to be floating above the water.
The magazine said: 'The winning images were chosen for their beauty and creativity, and further for their ability to impact and inspire.'