Wow, those are so me awesome shots! I have always enjoyed aquariums. I could just sit and watch the creatures float around all day. I have never been snorkeling, but I wouldn't be opposed to it if the opportunity ever arose. The world is definitely an amazing place!
We have several big aquariums here and they're all pretty good, well presented and informative. But like you say, sometimes it's nice just to sit and watch the creatures swimming around and the colours and all. Quite relaxing.
I would imagine you do given your locale!