A Magnum Opus of Tropical Reefs

The book “Reef Fishes of the East Indies” was written by Gerald Allen and is a comprehensive encyclopedia of reef fish from a diverse region. Read more about the writing process of the book and the author.

Dive photographer photographs an orange clown fish on a coral reef

The Enormous Din of the Sea

The ocean is actually quite a noisy place caused by the unique marine fauna. Read more about this marine symphony.

Dolphin swims next to a boat at sunset

Underwater Architecture

Submerged hotels or restaurants provide individuals with incredibly unique experiences. Underwater tourism connects people with marine life and is an enterprising investment.

Fine-dining restaurant is surrounded by an aquarium tube filled with sharks

Defining Performance

Do you know how to find the right pair of fins to fit your feet? Read our best tips on finding the right fins for you.

A person's legs, wearing red fins, stick out of tropical beach waters

DAN Member Profile: Ed Viesturs

DAN member Ed Viesturs is an accomplished mountaineer and scuba diver. Read more about this member’s story and why he’s with DAN.

Man in red snowsuit is at the summit of a snow-capped mountain

Beware the Mooring Lines

Divers have become more susceptible to stings and other injuries when trying to grasp permanent mooring lines. Learn why this has become a problem and how to manage injuries.

Three divers pause on a mooring line for a stop during their ascent

Evolution in a Flash

Flasher wrasses are a lesser-known group of fishes to divers because they can be overlooked. The males, for example, tiny, can mute their colors and keep low profiles. Read more about flasher wrasses.

Yellow, purple-striped flasher wrasse hangs out near corals

Swim Training for Scuba Divers

Swimming has plenty of benefits for scuba divers, including keeping cardiovascular health in tip-top shape. Read more about swimming for scuba divers and glean an example pool workout.

Man in Speedo and blue fins swims underwater in a pool

Big Things Cruise Off Florida’s Palm Beaches

Palm Beach, Fla. is home to over-the-top marine life from giant groupers to sharks. But overall, Palm Beach is a great place for divers. Read more about diving in Palm Beach.

A big lemon shark lies on the bottom of the ocean

Revenge of the Lionfish

Lionfish are nasty, invasive, predatory creatures that pack a mean sting. One woman’s encounter with a lionfish left her with a bad wound, but thankfully, DAN was able to help.

Morose lionfish sulks over coral