I have read and heard many (what to me are) mixed messages about whether the Princess ships take your passport at embarkation and return it to you at disembarkation.
As one who has done my share of international travel, I have always been careful to keep my passport with me at all times. The Berlitz "Cruising and Cruise Ships 2008" says cruisers should be prepared to turn over their passports to the ship and keep a photo copy.
I must admit that it makes me uncomfortable to get off the ship in a foreign country (like Colombia, Panama or Costa Rica) with only a photocopy of my passport in my pocket. What if I am asked, for some unknown reason, to provide citizenship documentation?
Are my concerns unfounded?