We did need a passport to board the ship but getting off/on in Columbia we did not need to show it. Just your cruise card although we do take photo I.d. when we leave the ship.
Being Canadians our passports were held by the cruiseline for the entire trip.
Alexandr Pushkin, Carnival-Holiday, HAL-(old)Westerdam, Orient lines-Marco Polo, Royal Olympic-Olympic, NCL-Dream, Dawn-Princess, ACCL-Grande Caribe, Oceania-Insignia (3), Regatta(4) Marina (1) St Lawrence Cruise Lines-Canadian Empress
Scenic River cruise June 11,2012