Hawksbill Turtles

The wreck of the USS Kittiwake in Grand Cayman is a crowd-pleaser of a dive. Now 15 years underwater, it lies on its side but is still easy to explore […]

This conceptual image portrays a turtle entrapped with plastic debris.

NorCal

My introduction to Northern California began with trees. As a little boy on family camping trips near Mendocino, I stared up in amazement at the towering redwoods. When we came […]

Diver next to coastal reef.

Liveaboard Fitness

Liveaboard dive trips offer access to some of the world’s best diving. With frequent dives and potentially short surface intervals, strenuous exercise isn’t recommended.  This series of low-intensity exercises is […]

Dead Bug

Unusual Exit

Our dive guide pointed out a Nassau grouper at a cleaning station in Little Cayman. As I watched it opening and closing its mouth, I thought I saw a rock or some algae on the fish’s side.

Nassau grouper

Starlink: Ubiquitous Connectivity

The advent of the Starlink satellite internet service is making even the farthest reaches of the dive world more accessible. It is now fairly common for liveaboards and remote resorts […]

Phone with Starlink Connectivity

Nitrox Production Methods

Enriched air, or nitrox, has become a trusted way for many recreational divers to extend no-decompression limits and reduce fatigue. By increasing the oxygen content and reducing nitrogen absorption, divers […]

Testing a cylinder

AUAS/DAN Dive Medicine Research Scholarship

The DAN Research Grant Program supports innovative research that advances diver health, safety, and performance. DAN helps generate the scientific evidence needed to improve dive practices and protect divers worldwide […]

Freediver on sunken ship

Antarctic Krill

Imagine a pregnant humpback whale, all 40 tons of her, moving through cold blue water toward a cloud of pink. The cloud is dense enough to have edges and to […]

An Antarctic humpback whale engulfs a mouthful of krill-rich water.

Reef Photography

We recently traveled nearly halfway around the world to photograph some of the planet’s most beautiful coral reefs, and wow, did we get lucky. Our liveaboard was gloriously uncrowded, and […]

Diver with Caribbean spiny lobsters.