Hyperbaric Chambers: How Recompression Treatment Works
When a diver surfaces with decompression sickness, a hyperbaric chamber is the only real fix. Here is how recompression works, and where chambers actually are.
Nov 18, 2024

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23 stories for“red sea diving safety”
When a diver surfaces with decompression sickness, a hyperbaric chamber is the only real fix. Here is how recompression works, and where chambers actually are.
Nov 18, 2024

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

Lionfish, stonefish, stingrays and most jellyfish deliver venoms that heat breaks down. The standard measure is immersion in fresh water as hot as you can stand without burning, capped at 45 degrees, for thirty to ninety minutes.
Sep 2, 2026

Egypt's most famous sinkhole is also its most argued-over dive site. What the Blue Hole actually is, and why so much depends on who is diving it.
May 20, 2024

Scuba has real hazards, but recreational diving within training and conditions is a managed-risk activity, not the extreme gamble suggested by rare accident headlines.
Jul 25, 2026

A delayed surface marker buoy is what turns a diver in open water from invisible into findable. It is also the item most divers buy, clip on, and deploy for the first time in the situation where they actually need it.
Sep 5, 2026

Shark bites made headlines again in 2025. The numbers behind those headlines tell a very different story for the people actually diving with sharks.
Mar 5, 2026

The same reef becomes a different site after dark, and so does the diving. Navigation, buddy contact and the way your brain handles a narrow beam all need rethinking before you get in.
Aug 8, 2026

The numbers every diver recites are not arbitrary and they are not a safety margin invented by lawyers. They come from a specific set of chamber trials, and knowing their limits tells you when to wait longer.
Aug 15, 2026

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

Overweighting is the most common equipment error in freediving and the one with the worst failure mode. The rule is simple: neutral at ten metres, positive above it, and the surface is where it matters.
Aug 11, 2026

The current constant weight world records, the athletes behind them, and the federations, AIDA and CMAS, that ratify every metre added to the books.
Jan 15, 2026

Submersion triggers an ancient reflex that slows the heart, redirects blood, and quietly reshapes what a trained freediver's body can survive underwater.
Sep 18, 2024

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

Deep water a short swim from shore, no boat, no current and warm all year. Dahab's geography explains its status, and the same geography is why the Blue Hole has the reputation it has.
Aug 9, 2026

Dahab's Blue Hole draws freedivers year round for a reason: shore access to real depth, warm water, forgiving conditions and an established training community.
Nov 14, 2025

A British freighter bombed off Sinai in 1941 still holds its motorcycles, trucks and rifles in the holds. Cousteau found it in 1956, and it remains the Red Sea's defining dive.
Aug 6, 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

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

One Maldivian military diver died in the Vaavu Atoll mission. His service deserves gratitude, while the unanswered questions surrounding his death still demand scrutiny.
Jul 25, 2026
