90m
4m - 12m
Shore
Beginner
90m
4m - 12m
Shore
Beginner
Deep
Shore
90m
4m – 12m
Beginner
—
-1% at 88m / 21%
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Underwater Sports Inc.
12.87kmUnderwater Sports Inc. (tacoma)
12.9kmAquaQuest Divers
15.03kmTl Sea Diving Llc
18.54kmFifth Dimension Inc.
23.17kmSeattle Dive Tours
32.51kmExotic Aquatics Ltd.
37.99kmUnderwater Sports Inc. (olympia)
39.67kmSeattle Scuba Schools
40.5kmStarfish Enterprise, Exploring Inner Space
41.68kmGradual 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.