Triggerfish: A Diver’s Guide to the Reef’s Oddball

With their locking spines, oddball swimming style, and a well-earned reputation for guarding their nests, triggerfish are some of the most memorable fish on any reef. Here’s what makes them tick — and how to share the water with them.

Scuba Myths, Busted: What New Divers Get Wrong

“Isn’t it dangerous?” “Don’t sharks attack divers?” “Don’t you need to be really fit?” We hear the same myths constantly, and most of them keep people out of the water for no good reason. Here are the big ones, honestly busted.

Get Your Gear Serviced Before Your Next Dive Trip

The worst place to discover your regulator needs a service is a dive boat a thousand miles from home. Here’s what to get checked before your next trip, how long service takes, and why leaving it to the last minute never ends well.

What Actually Happens in Your Open Water Course

Signing up for your first scuba course is exciting and a little intimidating, mostly because you don’t know what you’re walking into. Here’s an honest, step-by-step look at what your Open Water course actually involves, from laptop to open water.

Buying Your First Dive Gear: What to Get First

The fastest way to overspend as a new diver is to buy everything at once, in the wrong order. Here’s the sequence we actually recommend, from the personal-fit stuff you should own immediately to the big-ticket gear that can wait.

SSI’s New Invasive Species Specialty

SSI has added an Invasive Species Management Specialty to its conservation lineup. It’s easy to assume that’s a lionfish course for people who dive the Caribbean. It is — and Arizona’s lakes are still a good example of why the idea matters at home.