jkmmah,
Hi and welcome to cruising. You will love it!!!
I can't really help you on the excursions yet or sights to see, but we're leaving in 2 days to go on the Paradise 4/25 and I will be glad to give you my input when we get back.
I have an idea of what we are going to do, but nothing set in stone yet. We are going to go out on our own in Nassau, maybe to see Atlantis and then chill on the beach for a while.
In Dominican Republic, the ship excursion to Catalina Island, we are a little unsure about that port also.
St. Thomas, we are going to stay in St. Thomas. All of my friends that have been there say to go to St. John, but a lot of the posts I have read say it takes a while to get there and I don't want to waste my day traveling. We will prabably go to St Peter Greathouse, I think that's what its called, Mountain Top and then to Coki Beach for some snorkeling. If we have time we will go into the shopping area, but I am not much of a shopper.
Will let you know all about the ship and places to see when I get back.