DCI finds a spearfisher who puts the pursuit of a prize catch over his own safety.

Overfishing (not finning) is far and away the biggest threat to sharks globally, but banning shark fishing is overkill itself. There are middle ground solutions.

Rebreathing divers have longer bottom times and are quieter underwater, but you need to make sure you know how to use this complex equipment.

The Egyptian Red Sea is a dream combination of conditions and subjects for wide-angle underwater photography.

Ensure you never lose photos and videos of your dream dive trip with these easy tips.

An unexpected doctor’s clearance opens up a whole new world for a newlywed with cystic fibrosis on her way to Hawaii.

Diving is always better with a buddy. Here's how you can find local divers or travel friends.

Pulmonary edema is an abnormal leakage of fluid from the bloodstream into the alveoli—the microscopic air sacs in the lungs. It is most often the result of heart failure or other cardiac problems. Sometimes, however, pulmonary edema is observed in swimmers and divers when no underlying medical cause is apparent.

While these natural population peaks can cause harm and human interference can exacerbate them, there’s no reason to find them terribly alarming.