Closest train station is in Rock Tavern you would need to get a taxi there. It's Metro North railroad. You could check their schedule and see if it's possible to get to where you want. It arrives in Penn Station. You would need a taxi or something to get to Rock tavern station good luck
No
There is no train from Stewart airport to Cape liberty. Stewart is not in nyc. If you are in Manhattan or nyc it will likely be 3 trains you have to take to get to cruise terminal. Be better to Uber it or rent a car.
No train. Bus or car
The only train is at Beacon to grand central station. Fro there you can take a subway.
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