From Westchester, Dutchess or Putnam counties :

Go across the Hudson to Rockland. Take NYS thruway to Palisades Parkway south to exit 6W, which leads you on to Orangeburg Road. Follow Orangeburg road two traffic lights. After you pass the second light, you will come to Hunt road. You will see the complex on the left. Make a left onto Hunt Rd and another left into the park entrance