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60 stories for“ageing”
Older than PADI, structured as a non-profit membership association, and built on a principle almost nobody else uses: the instructor may exceed the standards, and is expected to.
Aug 12, 2026
In the late 1980s, teaching recreational divers to breathe enriched air was close to heresy. IANTD taught it anyway, then built the trimix and rebreather syllabi much of technical diving still runs on.
Aug 12, 2026
HEAD rescued Aqualung out of receivership with a 50 million euro package. The result is a single group holding four of diving's best known equipment names and SSI, the agency that certifies divers to use them.
Aug 18, 2026
Global Underwater Explorers standardises equipment, teaches in teams, tests fitness, and hands out provisional passes rather than certificates. It is the most divisive system in diving, and the most internally consistent.
Aug 12, 2026
The agencies argue endlessly and the accident data barely distinguishes between them. Here is what genuinely differs, what does not, and the questions to ask a dive centre before you pay.
Aug 13, 2026
The world's largest training agency is also the most argued about. Setting the snobbery aside, here is what a PADI course actually mandates, where the flexibility sits, and what the card does not cover.
Aug 12, 2026
Almost every fatality report ends with drowning, which tells you nothing. Investigators use a four-part chain instead: trigger, disabling agent, disabling injury, cause of death. Here is how to read one.
Aug 12, 2026
Divers Alert Network is not a training agency and issues no certifications. It collects the injury data, then publishes guidance based on it. Here is that guidance, in the order it matters.
Aug 12, 2026
