Can anyone confirm if it REALLY only covers lunch on sea days? If we stayed on board and Izumi were open, or we popped over to Johnny Rockets/Playmakers, would we not be covered with the UDP? I'm almost sure I remember doing this once on a Caribbean cruise, but can't quite remember. I know when we've had the UDP we've always just assumed we're covered at any of those restaurants, any time they are open (but we do almost always get off when in port).