Alert Diver

Could Breath-Hold Diving after Scuba Cause Decompression Sickness?

Petar Denoble, M.D., D.Sc.

Q2 2011

Breath-hold diving after scuba diving may lead to decompression sickness in extreme breath-hold diving. Read more about this link with breath-hold diving.

Diving in the Dark

Mike Ange

Q2 2011

Diving at night is a memorable experience because many nocturnal creatures come out to mate and feed. It requires a bit more equipment and training, but you can easily make your night dives as enjoyable as those in the daylight.

Third Time’s a Charm

David Ulloa

Q2 2011

Decompression sickness (DCS) is layered in variables and unique to each person. An experienced technical diver discusses their three DCS diagnoses and how they’ve since made adjustments.

The Quarries of Northwest Ohio

Erica Blake; Photos by Andy Morrison

Q2 2011

Ohio is more than a flat cornfield. Northwest Ohio quarries are unknown diving gems. Divers can practice their skills and explore unique attractions sunk specifically to entertain divers. Read more about diving in Ohio.

Exercises to Improve Body & Brain Power

Jessica B. Adams, Ph.D., and Stephanie N. Del Tufo, B.A.; Photos by Stephen Frink

Q2 2011

Exercise is a powerful tool to optimize brain function and scuba performance. Here’s a sequence of complex exercises to boost your fitness and make you think.

Diving with an Infectious Disease

DAN Medical Staff

Q2 2011

DAN medics answer your questions about dive medicine.

Fish Bait

Ned DeLoach and Anna DeLoach

Q2 2011

Frogfish are major draws for naturalists and divers — they are unique and well-adapted hunters. Thanks to a tiny rod in its head, they can tempt meals easily and efficiently. Read more about frogfish and their unique hunting rituals.

DAMSL: Bringing the Underwater World Online

Andrea Leontiou

Q2 2011

DAMSL is a free educational resource for students, educators and divers to learn more about the marine world. Learn more about DAMSL.

Scuba Geocaching

Kayla Donnawell

Q2 2011

Geocaching is a sport of high-tech treasure hunting and as popularity grew, it soon went underwater, too. Scuba geocaching combines the thrill of treasure hunting with scuba for a fun experience. Learn more about scuba geocaching.