What Does It Mean?

A PROFESSOR OF EMERGENCY MEDICINE and researcher at the University of Maryland School of Medicine, Stephen Thom holds medical and doctorate degrees from the University of Rochester. He previously led various clinical programs, including hyperbaric and emergency medicine, and a research lab at the University of Pennsylvania. What is your academic background? My medical specialty […]

Going Up

Every night as the sun slips below the horizon, countless aquatic creatures begin migrating up from the deep in what is quite possibly the greatest show on Earth. Seeking nourishment in shallow water, zooplankton must risk a perilous journey upward, avoiding a gauntlet of predators while remaining in the safety of darkness and then returning […]

When Should the Rescue Begin?

DIVING INHERENTLY CARRIES AN ELEVATED LEVEL OF RISK because humans cannot survive underwater without specialized equipment. When things go wrong, an effective rescue is vital for a favorable outcome. Most rescue diver courses teach students basic techniques to apply after something goes wrong, but better courses also provide techniques to prevent incidents from occurring in […]

Program Spotlight: DAN Offers New E-Learning Courses

Dive safety starts with understanding the risks in diving. Prevention requires taking appropriate steps to mitigate these risks, and effectively responding to incidents requires preparation and training. Online learning is a practical and convenient way to improve your knowledge and make you a safer diver. DAN members have access to a compendium of free e-learning […]

Celebrating Young and Old in Turks and Caicos

A TWO-WEEK LIVEABOARD in Turks and Caicos was the first dive trip I’d taken in 18 months, and I quickly learned that this small island nation has plenty to offer adults and children alike. It was Family Week, so I got to spend time with the younger generation of divers and their parents. West Caicos […]

Travel Smarter: Travelers Medical Guide Is Available

DAN’s new Travelers Medical Guide was created to help divers, boaters, and adventure travelers recognize and manage various travel-related illnesses and injuries. Drawing on DAN’s decades of experience managing emergencies, this digital guide explains common symptoms, illnesses, and treatments in an easy-to-understand manner. Access the free guide as a downloadable flipbook at DAN.org. Or access the […]

Fred Buyle

A STATEMENT ON FRED BUYLE’S WEBSITE briefly explains his approach to underwater photography: “To take his pictures and videos, Fred uses a simple formula: the water, available light, a camera, and one breath of air, nothing more, nothing less.” I would add to that list an extraordinary eye for composition and a passion for placing himself […]

A Sense of Purpose

Hometown: Phoenix, Arizona Years Diving: 34 Favorite Dive Destination: Little Cayman is special because of the conservation work our team has done through the Grouper Moon Project and the time I’ve spent there with my family. Why I’m a DAN Member: Diving around the world with REEF and conducting conservation research in the field means […]

Underwater Smartphone Photography

LIKE ANOTHER UNIVERSE, the underwater world is full of whimsical inhabitants, sinuous sharks, and huge mammals that have always fascinated people and probably always will. As a photographer, you enter completely new territory when you begin shooting underwater and learning how to adapt to the conditions of the aquatic world. Lighting subjects underwater differs significantly […]

Pool Operation: Know Before You Go

WHEN IT COMES TO THE OCEAN, we know when to go and when to stay away. If it is standard practice to check conditions before a dive, shouldn’t we ask a few basic questions before diving into a pool? Years ago I ran a pool at an athletic club and someone asked, “Why do we […]