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Maybe not all coral reefs, but they can be found throughout the tropics. Like so many other animals, if you move slowly and calmly they won't run and hide. As for beautiful things I've seen, the more I think about it the longer the list gets, though "beautiful" isn't the right word. Depending...

I think that under the circumstances that's a much better description than the article's reference to the diver straying from the group. Sounds like something that should be an (abridged?) integral part of the OW course.

Kind of the way you'd be trespassing if you ignored my "beware of dog" sign while you were on the public sidewalk and my dog dragged you onto the front porch? We must be looking at different diagrams. The one I see says nothing about a warning sign, let alone a "clear warning of what lay...

Maybe. An intake designed for safety would have a much larger cross sectional area than the conduit it leads to, so that the water flowing into the intake would move at a much lower speed. Of course that would be more expensive. I'll guess that part of the reason for the reservoir between the...

I'll happily agree that there's a rational explanation for why people do it, but that's very different than a rational reason for doing it. A physiological basis has no more to do with it than whether or not there's a "good" reason to panic. Either you're thinking rationally or you're not. It...

that should help reduce your workload. Unless it's a uniform policy of requiring that divers present proof of certification, and anything else that's required by the agency your instructors work with, and leaving it to the certified divers to decide whether or not they're competent to dive...

Based on the other divers being abruptly, and apparently unexpectedly, above her it's possible that she felt like she was sinking, but as near as I can tell she couldn't have been anything more than a few inches deeper because she never touched the bottom. Unfortunately it's a really lousy...

I'll assume that's a typo, but given the particulars of the case I'd say it's spot on. That's an excellent video, that everybody should watch. Here's a link (well, it was supposed to be just a link) to the 2nd part

My wife did her OW checkout dives during a dive shop trip to a Caribbean destination where the norm is a 2 tank dive that's a deep dive along a wall followed by a shallow dive (60' nominal maximum, but there's usually room to get far deeper if you really wanted to). There wasn't a convenient...

I really can't recall of any incident in the Caymans where the initial news story is followed by an update with useful information about just what happened. We occasionally get details from other sources, but don't expect more than a data point to add to the raw statistics. What little I do...

I think that's the most important point (as far as the legal issue, anyway). Is it possible that he killed her? Sure. Can it be proven beyond a reasonable doubt? Based on everything that I've read about it I see no chance of that if you consider it objectively. Maybe that's because they didn't...

Because you're now confident that if something bad happens you'll eventually get the charges dismissed? I haven't seen anything yet about why the charges were dismissed, and whether or not here's any reason to believe that this won't happen again. I'd much rather see the ounce of prevention...

I'm sure it's largely just the jarring change since I've been busy lately and just popped in with no warning, but all the white and grey looks very sterile. Not clean sterile, but no personality sterile. I'm sure I'll get used to it, and I'm sure there's good reason for functional changes, but...

I guess it's going to be really difficult to have a discussion about George Carlin. At least what I see above suggests that, unlike another site I use, if we discuss drinking people will be able to tell us what their favorite cocktails are. Can I say that my favorite bird if a tufted titmouse?

Even if the seal failed instantly around the entire perimeter of the O ring the initial pressure of the escaping air, at some minimal distance, will be tank pressure. Based on the time for the tank to completely empty (or for the leak to become nearly silent) I'll figure the mishap happened when...

I'd just choose one or the other. No reason to do both. What was all that gas in? I think maybe I'd just take off my gear and send it up first. And really hope one of them hit it.

What emergency? Once he was on the surface he had enough air to last a lifetime, which solves the OOA problem. For some people or some circumstances there may still be a problem that constitutes an emergency, but simply being on the surface and far from the boat isn't an emergency. Diver0001...

1:15 "Fascinated I forget to check my gauge" Right. Because at 1:00 you still had plenty of air left. I don't know how this guy's air consumption is, but unless it's really, really high and he planned a 5 minute dive his problem started before the video did. 1:40 "breathing becomes...

Fixed it for you. That's what I've always thought. People might understand the general idea of residual nitrogen from a simple explanation, but I think that some practice with the tables probably gives most people a better feel for it. Something like the difference between academic knowledge...

Are you sure it's not a reasoned, but subtle, argument about gas planning?