When I went for the Yankee parades and the Ranger Parade, I drove to Shea,(dont now if they have the park and ride at the stadium with the construction going on)took the #7 into Manhattan and change at 42nd st. Easy way to get in and out of there. Get there early 7-8 oclock and let the kids sit right under the Police barriers. Works out great.
Have fun whoever is going. If you never experienced it before it is something you will never forget. Take alot of Pictures.