40m
5m - 14m
Boat
Advanced
40m
5m - 14m
Boat
Advanced
Other, Deep, Inland
Boat
40m
5m – 14m
Advanced
21% – 28%
O213% at 38m / 29%
O2No photos yet.
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Gradual Narcosis Onset — Narcosis may develop slowly, making self-assessment unreliable.
Task Fixation at Depth — Cognitive narrowing at depth can reduce awareness of time and ascent rate.
Increased Gas Density Breathing Load — Higher gas density at depth increases work of breathing.
Thermocline Buoyancy Shift — Sharp thermoclines can cause sudden buoyancy changes.
Instant Visibility Collapse — Sediment disturbance can eliminate visibility immediately.
Late Detection of Structures — Submerged structures may only appear at very close range.