Whether you're a seasoned veteran or an inexperienced diver, REEF Volunteer Survey Projects will change the way you dive.

A swarm of jacks in Cabo Pulmo Park, Mexico, dwarfs an underwater photographer in a phenomenal courtship display.

Want to know where you can scuba dive with goliath grouper? Another wondrous spawning season for goliath grouper has come and gone in Florida, but goliaths, the largest grouper in the Atlantic, are known to return to the same sites like clockwork, so divers can witness the event every year.

Gray reef sharks explore the Ray of Hope shipwreck in Nassau, Bahamas. Watch these divers get up close and personal with a swarm of gray reef sharks.

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.

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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.