A Tourniquet Saves a Diver’s Life
A recent dive trip changed the lives of everyone involved, and I hope this story might help save another life. About 30 days before the trip, I was talking to […]
Alert Diver Issue: Q1 2025
Bikini Atoll
Located in the heart of the Pacific Ocean, Bikini Atoll is a remote and historically significant destination that offers some of the planet’s best wreck diving. The atoll’s stunning natural beauty and rich underwater history make it a diver’s paradise.
A Critical Look at No-Decompression Limits
As a hyperbaric physician and dive instructor, I’ve been around a lot of dive accidents, and I’ve spent decades educating divers and treating decompression sickness (DCS).
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). […]
From Sea to Space
Underwater environments simulate the conditions of space exploration and allow NASA to test equipment, perform research, and prepare for future missions in extreme settings such as the moon or Mars. Being underwater replicates the isolation, confined spaces, and limited resources astronauts experience in space.
Canceling for Cancer
I always get DAN Trip Insurance for overseas trips, which gives me peace of mind should the unexpected happen. There is a modest upfront payment based on the total trip costs and your age, so I considered skipping it for a Raja Ampat trip since I’ve had many trips without having to file a claim. I’m glad I chose otherwise.
Great White North
In November 2021 I was diving on the HMHS Letitia shipwreck in Halifax Harbour, Nova Scotia, one of Canada’s Maritime provinces. The British hospital ship, which lies near a gray seal colony, ran aground and sank in 1917 while returning from Liverpool, England, with wounded Canadian soldiers.
Port McNeill
A lifetime’s worth of superb diving awaits adventurous divers in the cool, current-swept waters surrounding British Columbia’s Vancouver Island.
Water Aerobics
Water aerobics can be beneficial for divers who want to improve their control and stamina underwater while minimizing impact on their joints. These targeted water aerobics exercises utilize aqua dumbbells and focus on enhancing a diver’s core stability, strength, and endurance.
Blue Dragons
Equipment: Sony a7RV camera, Sony 28-60mm lens at 49mm, a Nauticam WACP-C wide-angle conversion port, Nauticam housing, Retra Pro X strobesSettings: 1/250 sec, f/22, ISO 400Location: Sea of Cortez, Baja California […]
