Pushing the Envelope
Three accomplished dive photographers share how they’ve pushed the envelop in underwater photography. You can glean their tricks and secrets.
Alert Diver Issue: Q2 2010
Saving Seagrass, Saving Reefs
Seagrass beds are excellent places for marine life to live and thrive, but dwindling locations threaten the overall environment. Read more about the importance of seagrass beds.
DAN Member Profile: Lad Adkins
DAN member Lad Adkins has made it his mission to help get invasive lionfish numbers under control. Read more about Lad’s efforts and why he’s a member of DAN.
Caught in the Act
Several divers were lucky enough to catch a rare moment in the mating rituals of frogfish. Read more about their encounter.
Lower Body Strength
Lower-body muscular strength and endurance are necessary for scuba divers. Read more about building a strong and balanced lifting program while learning two key moves.
Anacapa Island, California
Anacapa Island, California, offers divers pristine coral reefs, undersea arches, abundant fish and playful pinnipeds — allwithin 14
Alger Underwater Preserve
Even in the worst weather, Alger Underwater Pass in Lake Superior has reliably good diving — and great shipwrecks. Red more about diving at Alger Underwater Preserve.
In the Nick of Time
An underwater filmmaker encountered problems when his right ear felt plugged. He powered through the work only for the ear to become worse. When he finally saw a doctor, he was told he may never regain hearing in his right ear. Read more.
Assessing Basic Vital Signs
Vital signs can be helpful even to first aid providers with limited medical training. Sets of vitals that are outside normal ranges typically indicate the need for some treatment.
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.
