So, I saw on planDisney that Canadian travelers going to the Caribbean (closed loop, leaving from PC) need a passport AND a Nexus card? Is this true? I have valid passports for everyone in my family (2 adult and 2 kids) but do have Nexus cards. We don't have the time (12 month timeframe) or ability to get Nexus cards (we live very far from any of the interview location) as we cruise in January. I am freaking out just a little bit right now!