Press Release
Received from: Buddy Dive

Buddy Dive Resort Academy IDC Program

Buddy Dive

Buddy Dive Resort, one of Bonaire's premier diving destinations, continues to offer its IDC, a comprehensive and internationally recognized program that trains aspiring scuba instructors to the highest professional standards. Held year-round in the idyllic setting of Bonaire, the IDC at Buddy Dive has become the go-to course for divers looking to advance their careers and gain PADI Instructor certification.

Are you an aspiring diver looking to go professional? Buddy Dive academy offers the chance and resources for you to become an instructor.

Mystery and Outrage Surround Death of 12-Year-Old Scuba Student

Missing data, troubling video and unanswered questions deepen concerns over training oversight and accountability

Dylan Harrison
Tech and Training

The death of 12-year-old diving student Dylan Harrison during a certification course in Texas has sent shockwaves through the international diving community. While every training fatality is tragic, the circumstances of this case—and the subsequent handling of evidence—have provoked widespread anger and calls for accountability.

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Converted! Jacket to Wing BCD

What are the pros and cons of using a wing BCD system compared to a jacket-style BCD? Simon Pridmore and one of his readers share their views, experience and insights to help you decide which one is best for you.

Words:
Simon Pridmore
Images:
Andrey Bizyukin
➥ Download the full article as pdf ⬅︎
Tech and Training

I write frequently about the merits of harness and wing BCD systems, not because I want to persuade all divers to use them, but because most people learn to dive using jacket-style BCDs, and I want to let divers—especially new divers—know that there are other options, so they are fully informed before they choose what to buy.

New Oxygen Exposure Limits Proposed for Divers

Experts recommend extended safe times at PO₂ 1.3 bar.

New guidelines suggest divers can safely spend longer at PO₂ 1.3 atm than previously advised — up to four hours of work and four hours of decompression.
Tech and Training

A panel of diving medicine experts has recommended revised exposure limits for central nervous system (CNS) oxygen toxicity when divers breathe an inspired partial pressure of oxygen (PO₂) of 1.3 atmospheres. The changes are based on recent research and field experience, aiming to bring guidelines in line with modern technical and scientific diving practice.

Press Release
Received from: NITDS

NAUI Worldwide Announces 2025 NAUI International Technical Diving Summit

NAUI

NAUI Worldwide is proud to extend a global invitation to the international diving community for the 2025 NAUI International Technical Diving Summit (NITDS), hosted by NAUI Affiliate North Florida Cave Training, taking place Friday, October 31 through Thursday, November 6, 2025, in Fort White, Florida.

Discover Florida Cave Diving

For divers worldwide, Florida is more than just shore and boat dives; it’s also home to some of the most legendary freshwater cave systems on the planet.

Controlled Ascent, Hidden Risk

CESA training under scrutiny as study reveals potential for silent lung stress 

Tech and Training

Controlled Emergency Swimming Ascents (CESA) are a fundamental component of diver training, simulating ascent without a gas supply. Now, a new study led by Olivier Castagna and colleagues at the French Military Diving School has raised questions about whether this vital drill might be more taxing on the lungs than previously assumed.

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Cold Waters: A Dive Journey in Temperature and Time

What is it like to go diving in cold waters? Simon Pridmore shares a friend’s story about the challenges of diving in Alaska and sums up the key takeaway tips for cold water diving.

Words:
Simon Pridmore and Ron Radcliffe
Images:
Ron Radcliffe, Larry Cohen and Peter Symes
➥ Download the full article as pdf ⬅︎
Tech and Training

Some time ago, I saw and reposted an article about cold water diving by dive writer Candice Landau. It is a terrific piece, and I highly recommend it. One of the many responses I received to my repost was from Ron Radcliffe, an old friend I had not seen for a long time. 

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Yucatán Revisited: Addressing the Fear of Cave Diving

Cave diving is a challenge in the best of circumstances, but managing fear after a few unnerving experiences can plague even seasoned cave divers. Pierre Constant shares his insights and perspectives on the mindset in cave diving.

Words:
Pierre Constant
Images:
Pierre Constant
➥ Download the full article as pdf ⬅︎
Tech and Training

When you are young, you are bold. You have no fear of anything, being naturally confident, especially if you have plenty of muscles, tattoos and are stuffed with a big ego. All in all, a strong, self-assured attitude. You are ready to tackle any challenges that would boost your self-esteem. It is a zest for adventure, a visceral pull towards the unknown and the excitement of an adrenaline rush. Cave diving can lure you into a new dimension when you are mentally ready for the exploration of the underworld.

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Drowning From the Inside: The IPO Threat

Immersion pulmonary oedema is a significant yet little-known risk for athletes, snorkellers and scuba divers that all of us should be aware of. Simon Pridmore provides important information about IPO and how to recognise it.

Words:
Simon Pridmore
Images:
➥ Download the full article as pdf ⬅︎
Tech and Training

In the last few years, there has been an increasing focus on a phenomenon that has been fatal for many scuba divers, snorkellers and triathletes. This phenomenon is called Immersion Pulmonary Oedema (IPO, or IPE in the United States, where “oedema” is spelt without the “o”).

IPO has been referred to as drowning from the inside, and it can occur without warning. Dr Peter Wilmhurst, who was one of the first diving medical specialists to identify IPO in sports divers, described it thus:

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