Hi Fezzek, welcome to Cruise-Chat. The water temperatures will be in the mid 80s. I have no intentions of seeing sharks, but there are plenty in the Bahamian chain, so you shouldn't be disappointed. In fact, I think they feed the stupid things. What an inane concept, let's feed those that can eat us. This way they'll lose their fear of humans. (Sorry, just think it's a really dumb idea
). Have not booked a tour through the company you are using, so cannot comment on their performance. The island does not close down at 6 pm. You can always go across to Paradise Island. There is a Margaritaville near the port. The straw market and shops will be closed, however. There are some shops in the hotels/casinos on Paradise Island. I usually wear a wet suit, but I freeze when it's below 90, so I'm not a good indicator of temperatures. Most people are fine without them. Best wishes for a fantastic cruise, and once again, welcome aboard!