The Cache is not at the posted coordinates.
You must complete the "Augmented Reality - Uncover Raritan Landing (Part 1)" Adventure Lab to obtain the coordinates to this cache. This cache is a bonus for completing the Adventure Lab. After you complete the "Augmented Reality - Uncover Raritan Landing (Part 1)" Adventure Lab, the final coordinates for this bonus cache will be displayed in the Adventure Lab app within the Journal.
The Adventure Labs for "Augmented Reality - Uncover Raritan Landing (Part 1)" and "Augmented Reality - Uncover Raritan Landing (Part 2)" are conducted sequentially starting from the parking area of East Jersey Old Town (consistent with the Augmented Reality tour) and require a walk of about 1 ½ miles, total out and back.
Use the Groundspeak Adventure Lab app and locate the link for "Augmented Reality - Uncover Raritan Landing (Part 1)" or scan the QR code below.
If you do not wish to download a third-party app to complete the "Augmented Reality - Uncover Raritan Landing (Part 1)" Adventure Lab, you may alternatively solve this puzzle to obtain the final coordinates:
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W Came Appoint Alter Art