Even in the digital age, black and white photographs are still viewed as art. In this edition of my underwater photography series, I’ll give you an introduction to contrast imaging.

King crabs invade Norwegian waters.

The Cold War has been over for more than two decades, but a relentless red army of monster crabs are still pouring over the border of Russia into Norway. The crabs are feared by environmentalists, but not by scuba divers.

Ice diving is always something out of the ordinary. The atmosphere, colors, flora and fauna—it definitely pays off to endure the icy temperatures for a while. However, there are a few things you need to be aware of. If you are not afraid of the cold water and you can overcome the anxiety of diving under ice, you will enjoy photographing the sometimes bizarre formations under the ice.

NAUI turns 50. Are the founding principles still valid half a century later, have they changed, and how does the organization plan to evolve in the next 50?