One added note. Though you must do the online check-in stuff to get the PAT, you don't have to fill in all of the details in the first pass. You just need to answer all the questions in some manner to get to the PAT. Some things (flight numbers etc.) you might not even know yet. In my case, my sons passports hadn't come yet, so I couldn't put in their numbers. But if you say "arriving by car" "paying cash" and "birth certificate" for those choices instead of airplane, credit card and passport, you can get to the PAT, pick your favorite and then go back and change your answers once you have looked up all of the details. Just don't forget to do so, as it really will save you (and everyone behind you in line) a lot of time at check in on the morning of your cruise.