Alert Diver Category: Features

The Island of Chuuk played a pivotal role in World War II, and the lagoon surrounding the islands guard the remains of that history. Read more about the Island of Chuuk.

The Cayman Islands have become an addiction for a National Geographic photographer. Discover why this person is so passionate about these islands.

Francesca Diaco provides a bonus photo gallery of images from her island community of Roatán in the Bay Islands of Honduras.

JUST BEFORE SUNRISE I make a cup of strong Indonesian tea and feel the familiar rush of anticipation that always builds when I dive where no one else has. From the liveaboard’s top deck I squint at a string of islands— just green dots from here — that stretch offshore from the Fakfak Regency …

The spectacular ecosystem of Indonesia’s Raja Ampat offers ample opportunities for fish portraits and macro shots with a 100mm lens, but the broad expanses of pristine hard corals punctuated with colorful soft corals and sea fans made it difficult for me to forego using my wide-angle lens during a recent liveaboard trip.

When people ask me to describe my favorite ocean experiences, I think of my first trip to Dominica in 2020. My goal was to photograph sperm whales underwater, but I kept my expectations low, having heard that quality interactions with sperm whales often require a lot of luck.

British warships sank the San José off the Colombian coast in 1708 during the War of the Spanish Succession.

View Andy and Allison Salmon’s bonus photo gallery that accompanies their feature on diving Central California.

Get a behind-the-scenes look at the U.S. Navy’s Experimental Diving Unit. With experimental set-ups that seem reminiscent of comic books, learn how this unit is changing dive medicine and research.

Tobago is a great dive destination for advanced divers because of semi-challenging topside conditions. But the rewards underwater are worth it. Read more about diving in Tobago.