Alert Diver Category: Advanced Diving

Some divers like closed-circuit rebreathers for their ability to provide breathing gas at a set partial pressure of oxygen throughout dives.

Public safety diving consists of team members who may be EMTs, firefighters, lifeguards, law enforcement officers and more. Public safety diving is notoriously dangerous and hard work.

Shipwrecks lure divers as much as they attract the sea life surrounding them. The spectacle of life on a wreck, an ecosystem unto itself, is often the main attraction for divers. Nearly every ocean, sea and lake holds a world of shipwreck exploration for advanced open-water divers. Each lost ship, submarine, airplane and even the odd locomotive is a time capsule waiting for an underwater explorer to visit and photograph. Never venture inside a shipwreck until you have advanced wreck-dive training from a certified, qualified dive training professional.

There is a moment in every dive — after the gear is checked, the team gives the final OK, and your body slips below the surface — that everything else fades.

What is saturation diving? When the diver breathes in inert gas, it dissolves into the body’s tissues and reaches equilibrium with the ambient pressure at the diver’s depth.

Military diving has ancient roots and today, is considered an elite classification. Military diving entails risks and responsibilities that go far beyond typical diving. Read more about the history of military diving and how it evolved.

Accidents and incidents occur worldwide that leave victims beyond the reach of standard rescue techniques. These events often happen in or near the water and may require the assistance of specially trained personnel.

Researchers test to see how rebreathers function in arctic environments. Read how a team of researchers aimed to explore this little-known subject.

Neutral buoyancy is a tough skill to master, but when it is accomplished, the rewards are dramatic. Learn the importance of good buoyancy and how to master this advanced technique.