Alert Diver Category: Features

The “twilight zone” is a narrow band of ocean that falls between 150 and 500 feet — a space well beyond a diver’s limits. Read more about this unique area of ocean.

The Bahamas is vast — with 100,000 square miles of oceanic wilderness. Four photojournalists chronicle their adventures in the Bahamas.

Sea turtles have been around for millions of years, and underwater photographer Doug Perine has captured images for every living species of sea turtle.

We’re all getting older — aging is inevitable — but our eagerness to dive is undiminished. This report by DAN’s senior director of research provides insights to help us continue diving for years to come.

The Galapagos Islands repeatedly tops the world’s lists of best diving destinations. Big and diverse marine animals are certainly a draw, but many love the topside attractions. Read more about traveling to the Galapagos Islands.

Lembeh is an island off the northeast coast of Sulawesi and is home to great diving. North Sulawesi is more than just the macro-mecca of Lembeh. Explore the northern islands for clear water, critters and active volcanoes — above and below.

The story of the search for the Japanese submarine I-52 is one of two discoveries separated by time and purpose. In the dark of night in the Atlantic Ocean in 1944, U.S. Navy anti-submarine ships searched for a clandestine meeting between German and Japanese naval crews. Operating on captured intelligence, they sought to surprise and sink the two submarines. Half a century later, the I-52 still rested undiscovered on the seafloor, but this time the search was in the dark of the deep ocean in pursuit of possibility, not destruction.

Upon its release in December 2022, Avatar: The Way of Water drew huge attention from the dive community for its remarkable underwater scenes.

Most fans of big animal action are familiar with the legendary Galápagos, Cocos, and Socorro dive destinations. All are remote and remarkable. Far fewer people know of — let alone have dived — another open-ocean oasis in the eastern tropical Pacific region: Isla Malpelo. 

Sir John Franklin’s expedition in 1845 to search for the Northwest Passage ended in tragedy when HMS Erebus and HMS Terror, with their combined 129 crew members, vanished in the Canadian Arctic, seemingly without a trace.