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Linden Wolbert

By Stephen Frink

Q1 2025

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.

DAN Research Grants

Q1 2025

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.

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Aquatic Dumbbells

Text by Jessica B. Adams, PhD, and Lucas Adams; photos by Stephen Frink

Q1 2025

Aquatic dumbbells can be beneficial for divers who want to improve their control and stamina underwater while minimizing impact on their joints. These targeted water aerobics exercises utilize aqua dumbbells and focus on enhancing a diver’s core stability, strength, and endurance. 

Great White North

By Chris Harvey-Clark, DVM

Q1 2025

In November 2021 I was diving on the HMHS Letitia shipwreck in Halifax Harbour, Nova Scotia, one of Canada’s Maritime provinces. The British hospital ship, which lies near a gray seal colony, ran aground and sank in 1917 while returning from Liverpool, England, with wounded Canadian soldiers. 

Canceling for Cancer

By Mark Vanderlinden

Q1 2025

I always get DAN Trip Insurance for overseas trips, which gives me peace of mind should the unexpected happen. There is a modest upfront payment based on the total trip costs and your age, so I considered skipping it for a Raja Ampat trip since I’ve had many trips without having to file a claim. I’m glad I chose otherwise.

From Sea to Space

Text and photos by Jeffrey Bozanic, PhD

Q1 2025

Underwater environments simulate the conditions of space exploration and allow NASA to test equipment, perform research, and prepare for future missions in extreme settings such as the moon or Mars. Being underwater replicates the isolation, confined spaces, and limited resources astronauts experience in space.

DCS Mystery

By Matt Wilbur

Q1 2025

I am a 55-year-old avid diver who made about 300 dives in 2023, most of which were coldwater shore-entry dives near San Diego, California, to below 100 feet (30 meters). I am also a dive instructor who loves to take underwater photos and participate in citizen science by completing a survey for the Reef Environmental Education Foundation (REEF) after every dive. My dive buddies know me as a safe and conservative diver.

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