Hello,   I'm on a cruise in September that arrives in Manhattan at 7:00 am on disembarkation day. The flight home that NCL has booked leaves LGA at 7:50 pm, with an NCL booked transfer to take us to the airport.    We are completely new to cruising, so I don't know what to expect on the disembarkation day. Can we leave the ship like we would at any other port and go explore Manhattan, and then return to the ship in the afternoon to officially disembark? Or are we going to hav