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Old March 15th, 2008
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minimum surface time for shallow depths

Hello All,

I've read the DCS threads on the Safety forum (a bit scary!), I've studied the nitrogen loading table from Trux (cannot find the AIDA tables on their site), and all of this is a bit bewildering to a semi-beginner about to go on a dolphin-swimming/fun freediving Bahamas trip next month.

Assuming max depths of 10m, slow ascent rates (<1m/sec), I seem to be coming up with a minimum surface time of 4 mins. For someone who is interacting with dolphins and wanting to spend as much time underwater as possible (with no plans to exceed 1 min per dive and probably no more than 10-20 dives per day), 4 or even 5 mins feels like an eternity. Are there other opinions or resources that can lead me to feel comfortable spending less time on the surface between relatively shallow dives?

Opinions appreciated. -- HJ
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