An Unconscious Ascent

WHILE DESCENDING ON OUR SECOND DIVE, I was at around 60 feet when I unexpectedly started ascending rapidly to the surface.

woman scuba diving

I Didn’t See That Coming

MY HUSBAND, BARRY, AND I got our dive certifications in Cozumel, Mexico, in 1994, and since then it has been one of our favorite destinations. We spent three weeks diving there in the summer of 2001, following our routine of running, exercising, and diving twice a day. 

Dr. Dario Gomez and some of his staff at the Costamed hyperbaric chamber

Healing Without Worry

AFTER I SPENT ALMOST 20 HOURS in a hyperbaric chamber over five days, life there had grown tedious. The last 15 minutes, however, were not only exciting but highly instructive. I learned that if you don’t know what you’re doing, don’t touch anything or do anything without first asking permission.

treatment in the hyperbaric chamber

DCS in Papua New Guinea

I was diving with my wife, Kristy Hiltz, in remote Kimbe Bay, Papua New Guinea. We had taken all the necessary precautions and dived according to our computers. On what turned out to be our last dive, we sat on a rock ledge at 70 feet for 15 to 20 minutes and then made a slow ascent, completing a full safety stop.

Kristy Hiltz, McNab’s wife, scuba diving with sea turtle.

For Want of a Nail, the Battle Was Lost

It was 2004, the dawn of digital photography, and I was conflicted about whether to shoot film or digital. I had brought housings for both cameras with me to Thailand. Carrying two housings on a dive was ponderous, but I could manage it if I didn’t take two sets of strobes. My solution was to rig both housings with wet connectors called EO pigtails, which went into the regular sync socket, allowing me to connect and disconnect my strobes underwater.

Frink checks out the camera table on a liveaboard

DCS in Little Cayman

I am grateful for the safety information DAN publishes, their recommendations for dive medicine physicians, and the peace of mind their insurance coverage provides. 

Speared by a Spearfish

About 12 years ago, a pair of commercial dive operators began offering adventurous divers a chance to go blackwater diving off the coast of Florida. Since then, blackwater dives have become an established fixture in the Palm Beach dive community, and I have been fortunate to log more than 1,000 such dives without incident.

deepwater cusk-eel larva

Canceling for Cancer

I always get DAN Trip Insurance for overseas trips, which gives me peace of mind should the unexpected happen. There is a modest upfront payment based on the total trip costs and your age, so I considered skipping it for a Raja Ampat trip since I’ve had many trips without having to file a claim. I’m glad I chose otherwise.

Mark Vanderlinden photographs a white-spotted puffer