Not to get to far ahead but looking at the 2024 Schedule

[GeauxSU]

There was a ferry that would leave from either NYC or Weehawken NJ that would take you up the Hudson to the campus.
It was a great way to go to a game if near the NYC area. It might have food service
You also can visit the Army Museum
Not sure it is still running

West Point Football Ferry | Army Football Ferry

Go to an Army Football game at West Point by ferry from Atlantic Highlands, NJ or Pier 11/Wall Street, NYC. Buy ferry tickets or game + ferry combo tickets through Seastreak ferries.

seastreak.com