Beneath the Fin
Sharks are among the ocean’s oldest survivors. They have cruised through Earth’s seas for more than 450 million years — long before the first trees grew or Saturn formed its rings.
Status Penelitian: Q4 2025
Hydro Training
Joint stability and core strength can significantly impact your dive experience, especially when there is current or you are entering or exiting the water in full gear. One way to improve joint stability and core strength is to incorporate water into almost any traditional exercise that uses a bar or dumbbells. The basic premise is that moving water forces your body to use more stability. You can purchase hydro training equipment or make your own.
Wobbegong Shark
While photographing the wrecks throughout the day, I noticed a few wobbegong sharks, but they were difficult to photograph as they rested under ledges or in sheltered spots.
Put Peace of Mind on Your Packing List
When we pack for a trip, our minds are usually filled with checklists that include passports, boarding passes, medications, and an extra phone charger. We rarely consider if we are […]
Composite Scuba Cylinders
Composite, fiber-wound cylinders are making their way back into diving in rebreathers and other advanced scuba gear. The weight and lifespan benefits of these cylinders are attempting to challenge their previous cost barrier.
Honoring First Aid DAN Providers
DAN’s first aid courses are designed to provide divers with the knowledge, skills, and confidence to respond in emergencies.
The Business of Protecting Paradise
Our oceans are under siege. Destructive industrial-scale fishing is causing widespread species decline. Ocean warming due to human-induced climate change is triggering episodes of mass coral bleaching with increased vigor and frequency.
Connecting Voices of Safe Diving
The DANcast, DAN’s official podcast, has significantly grown its reach as a resource for recreational divers.
Underwater Photography with Models: The Magnificent Seven
Working with models underwater has been a fundamental cornerstone of my career for more than four decades. I love shooting images of marine life, but for magazine editorial assignments, advertising photographs, and stock photography with model-released people, collaboration with a skilled underwater model has been paramount.
Craig Nelson, MD
As someone who loves, teaches, and works in the world of scuba diving while also focusing on community service and improving safety, I am often surrounded by amazing people, such as Craig Nelson, MD.
