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COPD: Incompatible With Diving
July 29th, 2021
There can be strenuous activity involved with managing currents, swimming on the surface in choppy seas or pulling yourself and your wet, heavy gear up a ladder and onto an unsteady boat. You may also...  Read More
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The Case of Catastrophic Kelp Loss
July 29th, 2021
Lessons learned from restoration efforts in the United States could help with kelp loss happening in Australia, Norway, Chile and elsewhere around the world. Divers can help by volunteering with proje...  Read More
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Know the Risks
July 29th, 2021
Envenomation by certain box jellyfish can cause a rare condition known as Irukandji syndrome. An interesting case resulted when a diver experienced Irukandji syndrome in conjunction with nitrogen narc...  Read More
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Shallow-Water Arterial Gas Embolisms
July 29th, 2021
The pressure change during ascent is greatest closer to the surface. But since it doesn’t take much overpressure to cause barotrauma, it can also occur if divers hold their breath at depth, especiall...  Read More
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Shooting in a Turbid Environment
July 29th, 2021
Turbid water may not appear brown or green from the surface — in many cases the water looks entirely different once we drop in and begin the dive. All water is turbid to some degree. Understanding wha...  Read More
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Surviving Triple Dangers in the Maldives
July 29th, 2021
If your breathing-gas supply is critically low, get to the surface at a safe ascent rate, and then monitor for signs of DCI. It is better to deal with DCI on the surface than to run out of breathing g...  Read More
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Aw Inspired
July 29th, 2021
Those of a certain age frequently became enthused about scuba diving through the old black-and-white episodes of Sea Hunt. Somewhat younger people may have watched The Undersea World of Jacques Couste...  Read More
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Operation Rising Sun
July 29th, 2021
In the dark of night on the open Atlantic Ocean in 1944, a group of U.S. Navy anti-submarine ships searched for a clandestine meeting between German and Japanese naval crews. Operating on captured int...  Read More
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An Insider’s Guide to Roatán
July 28th, 2021
Roatán also offers convenient and low-maintenance diving. The waters are clear, blue, calm and typically not subject to strong currents. The short, easy boat rides provide a lot of scheduling flexibil...  Read More
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Magic in the Gulf
July 28th, 2021
Near the turn of the 20th century, fishers described the two picturesque reefs full of colorful marine life about 100 miles south of the Texas–Louisiana border as “flower gardens,” and the name stuck....  Read More
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Pack Your Camera Equipment for a Dive Trip
July 13th, 2021
There is simply no way one can risk packing your valuable camera equipment into your check-in bags! Which means you must pack your expensive, valuable, fragile camera equipment into your hand luggage...  Read More
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How to Take Great Photos of Divers
June 12th, 2021
Get your buoyancy right before you take your camera underwater. You cannot take photos if you are flapping around trying to stay afloat or if you are constantly inflating and deflating your BCD. If yo...  Read More
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When Should I Call My Doctor?
May 21st, 2021
Photo by Lenetstan/Shutterstock 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 li...  Read More
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Dive Operations and COVID-19: Prepping for Return FAQs
May 21st, 2021
As more and more people are vaccinated and national and local lockdown orders are lifted, divers and dive business owners are eagerly returning to the water. The following Q&As have been compiled from...  Read More
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Medical Emergencies Abroad
May 21st, 2021
Best Practices for International Diving Incident PreparednessDivers have the unique opportunity to explore remote areas of our ocean planet. Unfortunately, a dive trip can quickly turn into a misadven...  Read More
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Dive Accident Coverage Vs. Medical & Travel Insurance: Do You Need Both?
May 21st, 2021
It is true that some medical insurance include cover for diving injuries. However, divers who have tried to go this route soon discover that it is not easy to work with a medical insurance when trying...  Read More
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Experience Matters
May 21st, 2021
By Cheryl Hughes After reading two recent Alert Diver articles — one by a woman who saved her husband in Cozumel and the other about how the simple act of saying some wise words may have saved another...  Read More
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Avoiding Panic After Regulator Failure
May 21st, 2021
Divers are responsible for doing a proper buddy check, having a plan for handling emergencies and making the decision to abort a dive if necessary. Photograph by Stephen Frink  By Nick UresinEditor’s ...  Read More
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Gear Maintenance: Protect Your Investment and Prevent Dive Accidents
May 20th, 2021
The adage “an ounce of prevention is worth a pound of cure” dates back to the 18th century but still rings true today. Proactive measures such as dental checkups, travel immunizations and oil changes ...  Read More
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Hose Failure
May 20th, 2021
Hose degradation is potentially an unseen hazard that you should consider during your predive check. (Please note that in the pictures shown, the failed hoses do not represent products supplied by the...  Read More
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Invisible Crystals
May 20th, 2021
By Francois Burman, Pr. Eng, MSc Scuba equipment failure or malfunction is a relatively rare factor in diving-related accidents and fatalities. When it does occur, the most common and hazardous malfun...  Read More
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Are 6351-T6 Alloy Scuba Cylinders Safe to Use?
May 20th, 2021
By Mark A. Gresham, President, PSI-PCI In recent months, two 6351-T6 alloy scuba cylinders ruptured, and evidence suggests the cause was sustained load cracking, a metallurgical anomaly. While those p...  Read More
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New Gear Orientation
May 20th, 2021
Whether you are renting or buying new gear, take time to become familiar with it before diving in open water. Photo by Stephen Frink By Jim Gunderson Whether you are a new diver buying your first set ...  Read More
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How To Clean Your Scuba Equipment
May 20th, 2021
The risk of acquiring a disease or infection from contaminated scuba equipment is low; however, there are many benefits to using clean, well-cared-for scuba equipment. Properly maintained dive gear ca...  Read More
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