We didn't have time before the cruise to go to Pearl Harbor, but NCL offers an "Early Bird" excursion that goes from the ship to Pearl Harbor then to the Airport or to a hotel if you prefer. You have to have a flight after 2 pm, which we did, and got to the airport by 12 noon. I am of the older generation and it is a shame that the younger generation does not seem to have been taught or at least told of what was done to the US that brought us into WWII. American seem to have a short memory.
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Norwegian Cruise Line