Yes u can, take the 7
It's a 20 minute walk
Hi Debbie -- Grand Central Terminal is about a 15-20 minute walk from Port Authority. You can also take the Shuttle train one stop from Times Square to Grand Central.
Grand Central Terminal is about 5 avenues from the Port Authority. They are both on 42nd Street. 1 is on the east side and the other one is on the west side The Port Authority is on 42nd Street and 8th Avenue, and Grand Central Terminal is on 42nd Street and Park Avenue. You can get from one to the other by subway, or you can walk it (if you do not have any luggage with you). The walk is most pleasant and enjoyable.
Yes
Yes you can also take the shuttle train to 8th Avenue! Very easy
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