We just booked an 18-day cruise from Rotterdam to Boston and have discovered that air service to Rotterdam is very limited. Flight Ease doesn't recognize it. So, I guess we fly into Amsterdam and visit there for a couple of days. My question, however, is whether we dare take a chance, since Rotterdam is about a 1-1/4 hr. drive from Amsterdam, whether we dare wait until the morning of the cruise to drive to drive to the port. Otherwise, it will require two hotel check-in's. Any suggestions welcome. Thanks