Insights from recent reports show why reliable decompression data, well-maintained gear, and assessing environmental conditions determine your safety.
Anyone heading underwater relies on their own preparation, reliable equipment, and proper risk management. Reports from diving practice, accident statistics, and new technical developments equally highlight how closely decompression planning, equipment condition, and external environmental factors are linked. Only those who understand these connections can effectively prevent incidents.
A look at the 2025 annual report of the British Sub-Aqua Club (BSAC) urges caution: the organisation recorded 53 incidents of decompression illness (DCI) in UK waters – a significant increase compared to 37 cases the previous year. According to BSAC, classic triggers such as depths over 30 metres or missed deco stops have historically become less significant. Instead, repetitive diving accounts for a growing share of reported DCI events. In addition, there were nine fatal accidents during the reporting period (average age 55 years), with the exact causes remaining unexplained in more than half of the cases due to a lack of information. Confirmed causes included immersion pulmonary oedema (IPO) and medical factors, while three fatalities involved deeper dives beyond 50 metres using rebreathers.
For decompression calculations, the ZHL-16 algorithm by Dr Albert A. Bühlmann remains a central foundation in the diving world to this day. Dive computer models such as the DaVinci by Cressi, for example, use Bühlmann ZHL-16C with adjustable gradient factors and colour displays to clearly present no-decompression limits and stops. Even mechanical watchmakers draw on it: the Bühlmann Decompression 02 model integrates 17 fixed deco profiles on a rotating disc as a battery-independent reference. However, calculations are only useful if they can also be read underwater. Manufacturers like SeeDeep address display readability issues with adjustable reading glasses mounted to the outside of the diving mask, without requiring an optical mask.
Safety starts with intact equipment, as thermal protection is essential for performance. When tears occur in heavily stressed areas of a wetsuit, the magazine IKSURFMAG recommends a clear procedure for DIY repairs:
How unpredictable the environment can be is demonstrated by field reports from the diving magazine TAUCHEN. On demanding wreck dives in the Dardanelles, a surface current of 5 km/h made descending along a buoy line difficult, while visibility suddenly collapsed at a depth of 50 metres. At exposed locations such as the Maldivian island of Fuvahmulah, which lies directly in the open ocean without a protective atoll or lagoon, divers are likewise confronted with depth, open blue water, and sometimes strong currents.
Last but not least, reef protection measures also play a role in planning: according to The Scuba News, conservation authorities such as CONANP in Cozumel Reefs National Park repeatedly close popular reef sections on a rolling basis – such as San Francisco or Santa Rosa Wall – to allow corals to recover from dive tourism and environmental stress. For recreational divers, risk management therefore also means checking beforehand with local dive centres regarding closures, conditions, and currents, assessing training levels realistically, and planning more conservatively in case of doubt, unclear conditions, or an inadequate briefing.
In the event of physical discomfort or medical doubts before and after dives, you should always seek professional dive medical advice.
Your takeaway: Check your gear carefully, plan repetitive dives conservatively, and adapt your dive plan flexibly to currents and local conditions.
This article was generated automatically with AI from the sources listed above and has not been editorially reviewed.