Carbon Monoxide Analyzer
I’ve read about carbon monoxide (CO) in scuba breathing gas but wonder if people truly appreciate the real implications of diving with a CO-contaminated scuba tank. It is not only […]
Alert Diver Issue: Q3 2026
When Training Takes Over
On a typical morning at Picnic Cove in Laguna Beach, California, in 2023, Val Marino was prepping for what was meant to be a routine dive. She was excited to […]
The True Cost of a Dive Accident
Every dive begins with a sense of possibility. Whether exploring a favorite local wreck, guiding students through their first open water experience, or embarking on a dream dive halfway around […]
Check Your Neck Seal
Even experienced divers and instructors may unexpectedly experience lightheadedness or loss of consciousness during a dive for numerous reasons. Causes may include decompression illness, barotrauma, gas contamination, dehydration, stroke, seizure, […]
Chuuk
Our first dive was on the Heian Maru, an enormous Japanese passenger and cargo liner that had been converted into a submarine tender during World War II. At more than […]
Carbon Monoxide in Breathing Air
A diver reported feeling unwell after a series of dives and described an uncomfortable irritation on the roof of his mouth, which raised a question about the quality of the […]
Argentine Patagonia
Along the wild Atlantic coast of Argentine Patagonia lies one of the most extraordinary marine wildlife sanctuaries in the world. Each year the sheltered gulfs surrounding Península Valdés transform into […]
