So I'm still debating if I want to go thru the hassle and expense of getting a passport for my honeymoon cruise. Most of the official recomendations I tend to see say "get a passport" in case you need to fly back, or because of general cruise guidelines that cover all the different cruise options. BUT.. Specifically the 4 day Dream cruise, I'm wondering if i should get a passport for our honeymoon cruise. i've never had one before and I'm not sure if that $100+ would be worth it for me to spend on the passport since I'm not sure when, if ever, I'd need one again. (That $100 could be spent onboard). My Fiance also has one currently, but she's expressed a desire to not use it on the cruise because she wants to travel under her married name (Drivers license, Marriage Certificate, and Birth Certificate verified), and not under the maiden name on her passport (Not enough time between the marriage and trip to have the passport updated). So.... What would you suggest? Do I really need to get a passport for this cruise, or will i be fine just sticking with my Birth Certificate as my documentation? Besides the extremely unlikely chance I'd need to fly back, is there any real practical reason or benefit from traveling with a passport instead of other valid forms of documentation?