A few years ago I was on a Scuba Pro boat on the great barrier reef. To extend our pre-lunch and pre-dinner dives, I'd snorkel around until I found something interesting in 10-20'/3-7m of water, go check it out for a while, gradually work my way to the surface (sometimes unintentionally as the direction I'd be going would be getting shallower), snorkel some more, check it out, etc. One of the Dive Masters said this kind of "bounce diving" is dangerous.
I'm going to Cozumel next month, and the hotel offers shore diving. I hear there's not much to see, so I was interested in a similar strategy; snorkel until I find something interesting, check it out breathing out of the tank, snorkel some more, etc.
So, is this dangerous at all? It doesn't seem like it should be since you're only absorbing nitrogen for a short time and then you're breathing unpressurized air for a while, quickly reducing your nitrogen saturation.
I'm going to Cozumel next month, and the hotel offers shore diving. I hear there's not much to see, so I was interested in a similar strategy; snorkel until I find something interesting, check it out breathing out of the tank, snorkel some more, etc.
So, is this dangerous at all? It doesn't seem like it should be since you're only absorbing nitrogen for a short time and then you're breathing unpressurized air for a while, quickly reducing your nitrogen saturation.
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