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Marfan Syndrome Recommendations.
April 7th, 2022
Medications and your baseline wellness are also worth reviewing. Some medications may have adverse reactions that may be a contraindication to diving. Your daily wellness is a necessary consideration,... Read More
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Concussion and Return to Diving
April 7th, 2022
The best recommendation is to focus on your recovery and not resume diving during this period. Determining your seizure risk after your head injury is necessary before consideration for a return to di... Read More
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Going Up
April 7th, 2022
Every night as the sun slips below the horizon, countless aquatic creatures begin migrating up from the deep in what is quite possibly the greatest show on Earth. Seeking nourishment in shallow water... Read More
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A Hole in My Heart
April 7th, 2022
During the summer of 2019, our group visited Lake Huron’s Thunder Bay National Marine Sanctuary in Michigan to dive the historic shipwrecks from the late 1800s that rest nearly intact in 160 to 200 fe... Read More
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High-Pressure Hose injuries
April 7th, 2022
When we first learn the basics of high pressures in hoses and cylinders, we are aware of the potential for serious injury to ourselves and those around us. If hoses fail, the results can be ear-shatte... Read More
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Mexico’s Sardine Run
April 7th, 2022
Finding a submerged ball of sardines in the open ocean is extremely unlikely by happenstance. Successful encounters occur when divers adopt the same protocols as the seasoned skippers of the sportfish... Read More
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A Sense of Purpose
April 2nd, 2022
Christy Pattengill-Semmens, Ph.D. As co-executive director of the nonprofit Reef Environmental Education Foundation (REEF) she oversees the Volunteer Fish Survey Project, one of the world’s largest an... Read More
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Short but Beautiful Lives
March 30th, 2022
Nudibranchs are jewelry of the sea — beautiful creatures blessed with unimaginable colors and shapes. Regal sea goddesses have navy blue bodies inscribed with yellow lines and often polka dots.... Read More
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The Argonaut Octopus and the jellyfish
March 30th, 2022
The form of a shelled argonaut octopus clutching a jellyfish takes shape just as the odd couple breaks the surface and bobs in a ring of ripples. Before I can catch my breath, the octopus dives, easil... Read More
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Pool Operation: Know Before you Go
March 30th, 2022
The challenge is keeping the balance in an ever-changing environment. Any pool built for public use, whether at an aquatic complex or a hotel, should have a certified pool operator (CPO) who has the k... Read More
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Titan Meets Titanic
March 30th, 2022
Rush understood that the Titanic is the rare underwater site that billions of people recognize and would draw both interest and funding to his efforts. Once OceanGate decided to take people to the Tit... Read More
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Pulmonary Hypertension and Diving
March 30th, 2022
A person’s preexisting condition and exercise intolerance will affect the heart and lungs’ ability to perform underwater. Various factors while underwater lead to intravascular volume shifts to the ce... Read More
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Laryngospasm and Anxiety
March 30th, 2022
If water entered the larynx, the epiglottis’ natural response would be to close the airways to prevent aspiration. The larynx would reflexively trigger coughing to expel the fluid, or you would try to... Read More
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Not Only for Diving
March 30th, 2022
The training style DAN uses — repeating skills and information as building blocks to the next topic — gave me a reliable memory bank of the steps for first aid and neurological assessment. I easily re... Read More
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More Than a Sore Shoulder
March 30th, 2022
When reflecting on what likely went wrong, I realized that my 15 minutes of cold decompression after 45 minutes of comfortably warm ongassing at depth was a textbook case of what not to do. While it w... Read More
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Low-Visibility Diving
March 30th, 2022
It can be a fun experience to dive without seeing anything. When you need to rely totally on your ears and hands, you will be surprised by how quickly your body can adjust to the new situation.
... Read More
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Building Better Balance
March 26th, 2022
Most activities that keep you on your feet naturally help you maintain balance, but the targeted exercises in this circuit can further improve your stability. These unilateral exercises isolate each s... Read More
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Underwater Photographer: Fred Buyle
March 26th, 2022
Mark Addison had luck freediving with sharks in the Indian Ocean off the east coast of South Africa. He had discovered that if we waited for warm, clear water to come in over the pinnacles, we might e... Read More
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Air and a Spare
March 26th, 2022
If you think a small bailout bottle is right for you, consider a few other issues. Maintenance requirements will be similar to those for a full-sized scuba tank, including hydrostatic testing, so you ... Read More
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Underwater Smartphone Photography
March 26th, 2022
Smartphones with underwater housings have some advantages over large camera rigs, such as the ability to fit in smaller environments. You can use this advantage to get angles of the subjects that othe... Read More
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Chasing Weeds
March 26th, 2022
Sargassum is a floating, golden-brown macroalgae with pearl-sized air bladders that resemble grapes buoying thick leaves. Wind and waves weave together the leaves to form large, nearly impenetrable ma... Read More
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Scuba Cylinder Rundown
March 26th, 2022
When choosing an appropriate cylinder size, consider factors such as the cylinder’s weight, your gas consumption rate, anticipated dive profile, personal comfort, and how much gas your buddy may need ... Read More
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Celebrating Young and Old in Turks and Caicos
March 26th, 2022
West Caicos provided great sites for all ages, especially the Gully, with barracuda, sharks, turtles, stingrays, groupers, cowfish, and more. But in my opinion the best of the best is The Dome, which... Read More
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When Should the Rescue Begin?
March 26th, 2022
When things go wrong, an effective rescue is vital for a favorable outcome. Most rescue diver courses teach students basic techniques to apply after something goes wrong, but better courses also provi... Read More
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2024
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My name is Rosanne… DAN was there for me?My name is Pam… DAN was there for me?My name is Nadia… DAN was there for me?My name is Morgan… DAN was there for me?My name is Mark… DAN was there for me?My name is Julika… DAN was there for me?My name is James Lewis… DAN was there for me?My name is Jack… DAN was there for me?My name is Mrs. Du Toit… DAN was there for me?My name is Sean… DAN was there for me?My name is Clayton… DAN was there for me?My name is Claire… DAN was there for me?My name is Lauren… DAN was there for me?My name is Amos… DAN was there for me?My name is Kelly… DAN was there for me?Get to Know DAN Instructor: Mauro JijeGet to know DAN Instructor: JP BarnardGet to know DAN Instructor: Sinda da GraçaGet to know DAN instructor Trainer: Christo van JaarsveldGet to know DAN instructor: Gregory DriesselGet to Know DAN Instructor: Beto Vambiane
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Get to know DAN Instructor: Dylan BowlesGet to know DAN instructor: Ryan CapazorioGet to know DAN Instructor: Tyrone LubbeGet to know DAN Instructor Trainer: Christo van JaarsveldGet to know DAN Instructor: Caitlyn MonahanSafety AngelsDiving With A PFODiving Anilao with Adam SokolskiScience Saves SharksUnderwater NavigationUnderstanding Dive Equipment Regulations
2023
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Terrific Freedive ModeKaboom!....The Big Oxygen Safety IssueScuba Nudi ClothingThe Benefits of Being BaldDive into Freedive InstructionCape Marine Research and Diver DevelopmentThe Inhaca Ocean Alliance.“LIGHTS, Film, Action!”Demo DiversSpecial Forces DiverWhat Dive Computers Don\'t Know | PART 2Toughing It Out Is Dangerous
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Mismatched Scuba Valves to Cylinder OutletsUnderwater Crime Scene InvestigatorsDive Boat Etiquette – From Yachts to rubber ducksTravel Smarter: Personal Safety While TravelingLiability in ContextLearning from Success. Learning from MistakeDive in the Fast Lane with DPVsKwaZulu Natal shipwrecks: The ProduceAvoid Diving With EarplugsThe Parting Shot