In May we are going on our first ever cruise. It is 4 days to the Bahamas. We both have birth Certificates with a raised stamp. Granted both are over 50 years old. I was wondering if we should get pass ports or not since birth certificates will work. Getting 2 pass ports will end up adding about another 300.00 to the trip cost. Thats a lot of $$ and less we can spend on stuff during vacation. Whats the down side to not getting one. should we decide to do more foreign travel we can always get later or would you recommend doing it now?