Makes no difference if you do not get off the ship. You have left the country and you will have to go thru the re-entry process into the U.S. Whatever they do on your initial entry into the U.S. is quite likely what they will do the second time. There is plenty to see without leaving the country.
8 Norwegian: Sky, Jewel, Dawn, Epic, Pearl, Breakaway, Getaway, Escape
10 Windjammer: S/V Legacy X3, S/V Polynesia, S/V Caledonia, S/V Diamant, S/V Sagitta X2 S/V Mandalay, S/V Vela