D.U.P.S. Trains, Planes, and Automobiles Traditional Cache

This hide brings you to the end of the DUPS (Down Under the Pulaski Skyway) trail. It overlooks the PATH train lines along with vehicular traffic and air traffic. It's a very busy place.

This location should offer some seclusion from all the activity around you. Please replace this carefully so it does not get discovered by muggles. < Congratulations to grschmid on the FTF. I can't believe it took a week in NNJC territory. Maybe I should raise the difficulty?/p>

Hint is a spoiler.