Do I Need Medical-Grade Oxygen?

DAN INTRODUCED THE FIRST standardized emergency oxygen course for divers as lay providers in 1991. More people trained in oxygen delivery means that providers in dive locations worldwide need to have emergency oxygen units available. Obtaining oxygen refills, however, is an ongoing problem …

Do divers need Medical-Grade Oxygen

Fakfak

JUST BEFORE SUNRISE I make a cup of strong Indonesian tea and feel the familiar rush of anticipation that always builds when I dive where no one else has. From the liveaboard’s top deck I squint at a string of islands— just green dots from here — that stretch offshore from the Fakfak Regency …

The Peculiar Life of Pearlfish

TO FIND THE FIRST DESCRIPTION OF A LARVAL PEARLFISH in the wild, I had to search back to the early 1980s annals of blackwater diving and Christopher Newbert’s account of […]

Demo Divers

MOST PEOPLE KNOW the historical significance of D-Day, the infamous day when Allied forces landed on the shores of western Europe on June 6, 1944.

Few people, however, know the story of the men who went into these enemy waters before them. Armed with nothing but a mask, fins, and a knife …

Treasure in Lake Michigan

WOULD YOU BE SURPRISED TO LEARN that treasure is beneath the surface of Lake Michigan? It’s true, and these treasures give us glimpses into our history. They aren’t found inside shipwrecks — the wrecks themselves are the treasures.