Blue Dragons 

Equipment: Sony a7RV camera, Sony 28-60mm lens at 49mm, a Nauticam WACP-C wide-angle conversion port, Nauticam housing, Retra Pro X strobesSettings: 1/250 sec, f/22, ISO 400Location: Sea of Cortez, Baja California […]

Blue Dragons

Exiting a Plane During an Emergency

Most flights are uneventful, with the worst experiences being an occupied lavatory or unexpected turbulence. Emergencies can happen, however, and aircraft passengers need to be prepared to react quickly and efficiently. In an emergency, knowing the proper evacuation procedures for your flight can mean the difference between safely concluding your trip or reaching a different final destination. 

flight attendant demonstrating proper wear of mask

Homemade Dive Gear

The “Historic Dive Helmets” article from the Second Quarter 2024 issue of Alert Diver triggered memories of my father, Burton Stewart, and his best friend Leno Prestini. In 1935 they crafted their […]

Prestini and Stewart preparing to dive

DAN Podcast Debuts

DAN’S NEW OFFICIAL PODCAST, The DANcast, delivers safety insights through engaging conversations from across the dive industry. This series blends practical knowledge with personal stories to inform and inspire the dive community. 

DAN Studio

Used Rebreather Scrubber Disposal

Sorb, or scrubber, plays a critical role in rebreather diving, as it is responsible for removing carbon dioxide (CO2) from the diver’s breathing gas. Small granules or pellets absorb exhaled […]

Sorb becomes saturated with calcium carbonate after prolonged use

DAN Research Grants

DAN has introduced the Research Grant Program, designed to push the boundaries of dive safety through innovative research. The program will support studies that develop robust theories and empirical evidence that contribute to safer dive experiences.

scuba diving research

Rewilding Coral Reefs 

Rewilding is a popular term in conservation circles, but what does it mean, and is it appropriate for coral reefs? Should divers be clamoring for reef rewilding? Does it represent […]

Nesha Ichida watches Seren, a wild leopard shark

Linden Wolbert

Any child predisposed to a love of nature will likely find their way to natural environments, which happened early and fortuitously for Linden Wolbert. When she turned 1 year old, her family moved to an old farm in Pennsylvania, not far from where George Washington crossed the Delaware River during the Revolutionary War.

mermaid

Close-Focus Wide-Angle Photography

Most of our experiences in digital photography are somewhere between one end of a spectrum and the other. Underwater photographers often make an either/or distinction when describing how we shoot, […]

Banggai cardinalfish in Lembeh, Indonesia

The Philippines: A Beacon of Hope for the High Seas

The high seas have long represented a frontier of wild adventure — a place where people took significant risks and untold fortunes were waiting to be snatched from the jaws of a capricious ocean.

clownfish with anemone