Trying to Figure Out a Caribbean Cruise

Is there anyone out there that is an experience Cruise Ship person? I am looking for a cruise from Fort Lauderdale where it goes to Grand Cayman. I have always wanted to go there because of Sting Ray City, everyone talks about that, and the Swim with Dolphin Grand Cayman.

I know it will go to other islands, but hopefully it will be the Islands that I want to go to.

Any suggestion would be appreciated.
God Bless,
John