Fitness for Scuba: Exercises for All Ages

SARCOPENIA IS A NATURAL MUSCLE LOSS (atrophy) due to aging. Periods of inactivity due to injury, illness, or a busy life can accelerate this process. Individuals over the age of 65 are particularly …

Oxygen Cleaning of Dive Gear: A Two-Part Series

FIRES IN COMPRESSED OXYGEN EQUIPMENT are rare, even though we hear about life-threatening accidents — a rebreather fire, an emergency oxygen regulator accident, or a gas blending system fire. Several key questions arise …

Rebreather Myths

CLOSED-CIRCUIT REBREATHERS (CCRs) have significantly grown in popularity over the past few years. They are becoming more of a norm in the technical diving community, and recreational and …

Blenny Watching 101

OF ALL THE FISHES IN THE SEA THAT ANNA ADORES, blennies perch high atop her favorites list. Her fascination with the tribe of typically small, hole-inhabiting bottom-dwellers …

DAN Medical Services Is Here for You

AS YOU MAKE PLANS TO DIVE THIS SUMMER, remember that an important benefit of DAN membership is access to DAN Medical Services.

Bonaire Inspires Hope for the Future of Coral

DESCENDING THE LIMESTONE STAIRS OF BONAIRE’S famous 1,000 Steps dive site in full scuba gear is challenging. It’s just 64 steps down, but it feels like many more. Once you make it down, you’re rewarded with a Caribbean reef teeming with life …

Is Something Wrong?

MY BUDDY AND I DIVED SIX OUT OF SEVEN DAYS on my last dive trip. Our profile allowed an hour of dive time with two-tank dives …

Heated Garments

GETTING COLD ON A DIVE IS UNPLEASANT, but if it progresses to hypothermia, it becomes potentially fatal. Even more than discomfort, considering the physiological and psychological stress it can cause, being cold is potentially risky.

Tren Maya

SOME OF THE WORLD’S MOST BEAUTIFUL FLOODED CAVES are underneath the jungle of Mexico’s Yucatán Peninsula. The peninsula began as a coral reef which sea-level fluctuations during various ice ages exposed to the atmosphere.

Imps of Darkness

IT IS DAY FIVE OF THE VOYAGE, and our liveaboard has finally finished the overnight crossing south from the warm waters of Darwin and Wolf islands to Cape Douglas, Isla Fernandina. Although we don’t travel a great distance …

English