Study Update: PFO
If divers test positive for patent foramen ovale (PFO), they may choose to stop diving or take steps to mitigate future risks. A five-year DAN study analyzed those who underwent a closure procedure and those who did not.
THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK
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Your Computer Fails: Now What?
What do you do when your dive computer fails? With the right backup instruments and techniques, you can keep diving safely. Learn more.
When Garbage Doesn’t Die
Garbage, especially plastics, can be found all over the world in all kinds of bodies of water. Read more about what is being done and what divers can do help clean it all up.
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Digital Effects Using High Dynamic Range
High dynamic range (HDR) is a clever digital process that will allow you to generate exceptional detail in still photos by combining the best elements from multiple shots into a single image. Read more about this practice.
Shooter: Howard Hall
Underwater cinematographer Howard Hall had humble beginnings and is now known for his spectacular underwater IMAX movies. Read more about Howard Hall and his career.
Dolphins to Port, A Diver in Trouble
In a rush to enter the water, a diver did not check the tank valve, leaving them in a dangerous spot. Read more about the incident.
Backplate Buoyancy Systems
More-experienced divers prefer the backplate buoyancy system because of its rock-solid stability and simple harness system. Read more about backplate buoyancy systems.
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