Stunning video from Nat Geo: When tide and current turn a tiny bay into a bowl of plankton, manta rays in the Maldives gather for a roiling, whirling feast.

Nudibranch lovers can embark on the fifth annual Nudibranch Safari on Norway next year. Underwater photographer Christian Skauge will be leading the workshop as divers and photographers learn more about nudibranch biology and collect them for research.

Nearly 700 photos were submitted for this year's Photo Contest, and we received some awesome and moving whale pictures in the process! Our readers' best whale images, presented by _Scuba Diving_ Magazine.

Ned and Anna DeLoach are on the hunt for bumblebee shrimp in this month's Critter Hunt.

For many underwater photographers, capturing a frogfish on film is a rare event. So how does a photographer find two? Find out how Rebecca Hewett got this image, which earned her an Honorable Mention Award in _Scuba Diving_'s 2013 Underwater Photography Contest.

Small Hope Bay on Andros is home to the world’s third longest barrier reef, so it’s little surprise that the Bahamas attract the big stuff. What most divers fail to realize is how much macro life abounds in the shallows.

Watch mobula rays — aka devil rays — feeding and flying off Baja California, Mexico, in what National Geographic says could be the largest school ever filmed.

Check out this video from an underwater photographer as he comes face to face with a deadly leopard seal. You'll be surprised by what happens.

This scuba diver has dedicated her life to conservation work in the South Pacific and was instrumental in the development of the Cook Islands Shark Sanctuary.