Cruise Ships Are Stirring Things Up
Coral reefs are facing many environmental challenges, and cruise ships are a major contributor. One of these ships’ greatest impacts is starting to muddy the water.
Alert Diver Issue: Q3 2025
Ken Nedimyer
Ken Nedimyer’s connection to the sea began early. He put himself through college by collecting tropical fish and diving for lobster in the Florida Keys.
Photography for Philanthropy
Think about the first time you picked up an underwater camera — what was the initial reason? Maybe you wanted a way to record your dives or a mechanism to show your nondiver friends and family the beauty of the underwater world.
From Surface to Sky
When a diver goes missing, the sea becomes a vast, indifferent expanse, turning a rescue effort into a race against time. Every second matters, and the right tools can make the difference between a successful rescue and a tragic recovery.
Imran Ahmad
The sea enthralled lmran Ahmad from a very early age. Growing up in Singapore, young lmran never missed an opportuniry to go fishing with his father, a police officer, on their boat off the coast.
It Takes a Village To Raise a Whale
At up to 330,000 pounds (149,685 kilograms) and 110 feet (33.5 meters) long, they are the largest creatures to have ever lived.
Diving with Type 1 Diabetes
Q: I was recently diagnosed with type 1 diabetes and will now require insulin. Will I be able to dive again?
No Time Like the Present
There’s no substitute for the feeling of being underwater — weightless, focused, and fully immersed in a world few people ever see. Whether you’re enjoying a favorite local spot or exploring a new site far from home, every dive offers something worthwhile: a moment of calm, a connection with nature, a skill refined, or an experience of community with other divers.
Shocking Misconceptions About AEDs
The automated external defibrillator (AED) was developed as a portable medical device and released for public use in the 1960s. The operation of AEDs has gotten simpler over the years, and the devices are now widely available for use by lay providers with basic training.
A Quest for Life
Seemingly crafted for photographers, nudibranchs are slow-moving and vibrant and have adapted to curious shapes and sizes.
