What it's like to swim with orcas—or killer whales—in Norway's Troms region aboard *Sula* liveaboard.

A science expert lists his favorite amazing shark facts, including facts about Greenland sharks, bull sharks and more.

Pro tips for scuba diving safety in low visibility, and how to make the most out of a dive with bad viz.

Learn how to identify key coral species like the *Isopora Palifera* coral.

Professional stunt diver James Mitchell-Clyde, who has worked on numerous Hollywood projects—here are his most memorable moments.

These machines can be lifesavers when a diver gets a case of the bends.

Scuba divers know currents can be deadly and unpredictable—see how this man survived a scary run-in with rip current while kitesurfing.

This scuba diving accident analysis discusses what happens when you have a free-flowing regulator at depth.

Learn how to identify key coral species, starting with pocillopora corals, also called cauliflower coral.