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60 stories for“market structure”
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
Scuba Schools International built its model around the store rather than the individual teacher, gave its digital learning away, and quietly became the main alternative to PADI in most of the world.
Aug 12, 2026
An Open Water card opens the door to diving worldwide, but it is a narrower licence than most new divers assume. Here is exactly what it covers.
Sep 9, 2025
The world's deepest pool holds 14 million litres at a constant 30C, with a sunken city at the bottom. What it removes from diving turns out to be the interesting part.
Aug 6, 2026
The Gulf coast rarely gets mentioned in dive travel guides, but Fujairah and the Musandam peninsula quietly deliver some of the region's best reefs.
Nov 3, 2024
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
