This thread (and many similar ones that came before it) came to mind when I logged a couple of training dives recently where we were at 13 feet in a Florida spring for an hour. I suppose if it had been 13 feet for 15 minutes, I wouldn't have logged it. But in this case, I made the decision that these were significant training dives for me. I'm still ambivalent about it. Glad I'm not going on any Red Sea liveaboards soon