A frogman glides through a crystal blue lagoon beneath a breathtaking canopy of stars and in another picture a diver examines a wall of bright green moss illuminated by an underwater lamp.
These stunning photographs were taken by National Geographic photographer Victor Lyagushkin who accompanied a team of divers to explore an underwater cave network.
Taken at the Blue Lake, near the Caucasus Mountains in Russia, the incredible scenes were captured on camera to raise awareness about the unique environment.
Link and some more seriously stunning pictures: http://www.dailymail...kind-world.html
