Entangled in Kelp

Kelp can often entangle divers and result in anxiety and panic. Read an incident in which kelp entangled a diver and unfortunately resulted in his death.

Kelp and sea grass wave underwater

Don’t Assume

Self-diagnosis can lead to delays in the medical care you need. Never assume — and be sure to contact DAN.

Tanks stand on the dock of a boat and man prepares wetsuit in background

The Eel Bite That Almost Took My Hand

You might know me already or at least know about me. I came to Key Largo, Florida, in 1978 to open Captain Slate’s Atlantis Dive Center. Early on I had an affinity for the marine life on our reefs, and my earliest mentor, Steve Klem, had established ongoing fish-feeding activity on the City of Washington wreck.

green moray eels approach diver

Explore All Possibilities

Symptoms do not always point to just one definite cause, so it is often just as important to continue listening to the patient and exploring options that might not be immediately apparent.

Bald person gets a medical scan.

Don’t Ignore Your Medical History

A scientific diver, participating in training exercises with her team, became overheated and called off the dive. Read more about the incident, diagnosis, treatment and more.

Female diver in a drysuit holding a flashlight

Don’t Be Fooled

Relief from symptoms doesn’t always mean a cure. Read one incident of when a diver presented with a rash and received treatment for decompression sickness — but became very combative.

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

DCS Mystery

I am a 55-year-old avid diver who made about 300 dives in 2023, most of which were coldwater shore-entry dives near San Diego, California, to below 100 feet (30 meters). I am also a dive instructor who loves to take underwater photos and participate in citizen science by completing a survey for the Reef Environmental Education Foundation (REEF) after every dive. My dive buddies know me as a safe and conservative diver.

California sidegill nudibranch

A Free-Flowing Failure

Contrary to what you might expect, air will escape from a low-pressure hose faster than from a high-pressure hose because of the low-pressure hose’s wider opening.

Contrary to what you might expect, air will escape from a low-pressure hose (left) faster than from a high-pressure hose (right) because of the low-pressure hose’s wider opening.

Coming to Grips with Symptoms

A diver had odd sensations in her hand but she wasn’t too concerned…until complications arose. Read more about this diver’s story.

Female diver holds a camera

Full Treatment

Emergency oxygen is only the first step to treating suspected cases of decompression illness. Read more about this serious diving incident.

Bald and bearded man stands outside a hyperbaric chamber and monitors it