Diving safety & medicine

11 articles covering decompression, narcosis, medical fitness and emergency response.

A diver in perfect horizontal trim gliding over a coral reef at 18 meters depth.

Reducing SAC rate: techniques that work

Learn to reduce your SAC rate from 25 L/min to 15 L/min using proven buoyancy and trim techniques used by professionals.

A diver performing the Frenzel maneuver underwater near a coral reef in Koh Tao.

safety · 10 min

Ear barotrauma: prevention and 5 equalization techniques

Master ear equalization diving to avoid barotrauma. Learn the Frenzel technique and Valsalva risks used by divers since 2024.

A diver sitting on a boat deck in Koh Tao looking at their shoulder with a concerned expression.

safety · 12 min

Recognizing decompression sickness early

Learn to identify real decompression sickness symptoms. 90% of cases appear within 12 hours of diving, so knowing the difference between fatigue and DCS is vital.

A diver checks a dive computer at 35m depth near a coral wall in Komodo.

safety · 10 min

Deep diving 30-40m: what changes

Deep diving between 30m and 40m changes your physics. Learn how NDL shrinks by 75% and why narcosis hits hard.

A child in a small wetsuit practices buoyancy in a shallow tropical reef setting.

safety · 9 min

Diving with kids: age and depth limits

Learn the specific age and depth limits for kids diving, from PADI Bubblemaker 8+ to Junior Open Water 10+ levels.

A close up of a diver checking their oxygen sensor and pressure gauge on a boat in Koh Tao.

safety · 12 min

Medical fitness to dive: realistic standards

Learn how RSTC standards apply to asthma, diabetes, and heart conditions. This guide covers medical clearance for divers based on 2024 safety protocols.

A diver using a reef hook to stay stationary on a coral wall during a strong current in Komodo.

safety · 10 min

Drift diving: skills, gear, mindset

Master drift diving techniques with this guide. We cover gear, down-current escape, and why 30+ dives is the ideal baseline for safety.

A close-up of a scuba diver checking a dive computer on a boat deck in Koh Tao.

safety · 10 min

How long to wait between diving and flying

Learn why the 24-hour rule exists. We examine DAN guidelines and cabin pressure risks to keep your post-dive flights safe.

A diver uses a high-lumen flashlight to illuminate a large octopus on a coral reef at night.

safety · 8 min

Night diving: gear, signals, behavior shifts

Learn how to manage light, buoyancy, and signals for night diving based on 14 years of experience in Southeast Asia.

A diver checking their depth gauge at 35 meters in blue water.

safety · 10 min

Nitrogen narcosis: actual onset, recovery, prevention

Learn the reality of nitrogen narcosis onset and recovery. We analyze why some divers feel effects at 25m while others stay clear until 40m.

A diver swims through a dark, narrow corridor of a rusted shipwreck with a guide line visible.

safety · 12 min

Wreck diving: from external tours to penetration

Learn the progression from external wreck tours to technical penetration, covering risks like silt-outs and specific sites like the USS Liberty.