"I’m not as worried about the experienced fishermen and glass bottom boat captains as I am a possibly inexperienced, possibly impaired “captain” living it up on vacation."

John NYC, by "experienced... boat captains" does that include the one that drove over the very obvious swim line and got us caught up on it a few weeks ago when we took some visitors out for a tour?

I do agree with both parties giving plenty of space and being vigilant. Accidents happen regardless of experience.