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 […]
Alert Diver Issue: Q3 2026
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 […]
Working to Know More
With a foundation in community-focused research and a dedication to developing the next generation of researchers, Zachary Schlader, PhD, has developed his career into an impactful model of scholarship, mentorship, […]
Cozumel
Cozumel, a tiny gem of an island in the Caribbean Sea, is nestled across from mainland Mexico in the state of Quintana Roo near the eastern tip of the Yucatán […]
Dry Diving in a Hyperbaric System
Recreational divers learn about the need for a hyperbaric chamber in case they develop decompression sickness (DCS). The term hyperbaric chamber, however, is quite broad. In practical terms, it is […]
Bitten by Bonitos
I have carried DAN insurance for decades. Thankfully I never had to use it until last October, when I was on a liveaboard trip that combined snorkeling with baitballs in […]
