.

One minute the water is crystal clear, but with the kick of a fin everything is covered by silt. Do you know how to survive in a low-visibility situation?

In this installment, Eric Douglas explains the relationship between heart disease risks and waistline, and explains what it's like to be in cardiac rehab.

.

Do you get cramps or feel fatigue after scuba diving? It's probably not decompression sickness, so try these electrolyte solutions for a more comfortable post-dive experience.

The former executive officer goes scuba diving in Grand Cayman's Kittiwake shipwreck, exploring the ship that he served on for years.

Can you dive again after open-heart surgery? Author Eric Douglas tells the true story of his heart disease recovery in his latest installment: Lessons Learned.

Some of the most interesting marine animals are masters of disguise, but with these tips you can be sure to find concealed sea life on your next dive.

Nothing is better than a thriving reef. These locations, chosen by you, offer the healthiest marine environments to explore!