u/Slow-Astronomer8069

I am going on my first cruise ,I would like to know if there are any passport issues when going on the cruise ,and also I am glution and dairy free .are there any food on the ship that gluten and dairy free such as restaurants types or cafeteria ,or do I need to take some food along?.

This is going to be my first crise in the bahamas ,and can other give me answers for it. I am gluten and dairy free, do I need to take food along or is there such as a buffet and restaurants on the cruise ship. What is there to do or how often does it stop at islands ?