From New Jersey

Garden State Parkway or Palisades Parkway to Interstate 287/87 East to Tappan Zee Bridge. After toll take first exit, Route 9 Tarrytown. At exit traffic light turn right onto Route 9 North to fourth light. Turn right onto Benedict Avenue. At third light, turn right onto 400 Benedict Avenue (opposite entrance to Hackley School). Continue up the drive to the Castle.