Breathing from the wrong gas supply didn't kill Sam — heart disease and obesity got him first. Another case study in our Lessons for Life dive training series.

Dive Training, Scuba Safety, and Dive Medicine: Dive better and safer by taking care of your noggin.

Do you have trouble equalizing your ears underwater? These 6 expert tips will help you clear your ears faster than you can say Valsalva maneuver.

Basic scuba diving rules and regulations to stay safe underwater, from your safety stop to diving ascent rate.

Panic may be the No. 1 cause of scuba fatalities, and experienced divers are not immune. Here's how to keep your cool when things turn rough under water.

Nitrox lets you dive longer and deeper, right? What you need to know about diving safely on nitrox and oxygen toxicity.

Proper weighting is a moving target that changes every time you go scuba diving. Find out how to improve your buoyancy while scuba diving.

Certified as a cave or cavern diver? Are you sure your training has prepared you? All the things to consider before ever entering a cave.

Thinking about participating in Florida's mini season for hunting lobsters? Prepare yourself with these expert tips on finding, catching and cooking lobsters — or go home hungry.