Alert Diver Category: Dive Slate

A READER RECENTLY BROUGHT TO OUR ATTENTION that over the years multiple Alert Diver contributors have credited a particular dive instructor with providing training that saved their lives. Upon researching […]

I started diving while I was in flight school in Pensacola, Florida. One day I thought, “I’m right by the water. I’ll go try it out.” I got certified and found that flying and diving share a lot of similarities.

DAN’S NEW OFFICIAL PODCAST, The DANcast, delivers safety insights through engaging conversations from across the dive industry. This series blends practical knowledge with personal stories to inform and inspire the dive community. 

At up to 330,000 pounds (149,685 kilograms) and 110 feet (33.5 meters) long, they are the largest creatures to have ever lived. 

Discover how Marc Kaiser developed his love for diving from childhood, influenced by early underwater shows and his father’s experiences.

If you notice health changes during or soon after a dive, you should assume that it is related to diving. The most likely culprit is decompression illness (DCI), the likelihood of which increases with the severity of the dive. If DCI is suspected, you should receive first aid surface oxygen and a proper medical evaluation. Even if your condition is not DCI, first aid oxygen may still help and will not worsen your condition.

Sunscreen pollution is a serious threat to the world’s coral reefs causing fast degradation. But, divers can combat the effects of this pollution with simple steps.

On Greece’s coast, ancient shipwrecks were found dating back to Roman times. Ancient shipwrecks are a different treasure than simply diving regular shipwrecks.

The crown-of-thorns starfish is considered one of the most influential invertebrate predators found on Pacific coral reefs. Read more about why this starfish is so important to reef health.

Emperor penguins are the largest species of penguins and they have very fascinating behaviors. Read one diver’s account of witnessing and photographing these penguins.