Looe Key

Looe Key is considered a gem within the Florida Keys. The reef boasts corals, sharks, rays, grouper and many other species of wildlife. Learn more about diving Looe Key.

A sad-looking grouper with spotty flesh, floats over a coral reef

Marine Biogeography

Marine biodiversity is vast and each river, lake, ocean and reef has different life. But what underlies regional diversities in marine biodiversity? How can one place support more life compared to others? Learn more about this kind of biodiversity.

An outcrop of colorful coral and a diver swims in the background

Research & Outreach

DAN can help members work through difficult situations and accidents. But DAN’s research efforts can also help divers in lasting ways.

The inside of a hyperbaric chamber is padded and no one is in it.

The Logistics of Exploration

Get a deeper understanding of exploratory diving — a sometimes controversial topic. One team of divers schemed a plan to dive and explore a deep wreck. Read more about the process.

Dive team explores propeller