The cache is not at the posted coordinates.

maccamob's one hundred and sixtieth cache is a Bonus Cache for completing our Adventure Lab 

Yes, but is it art, in Wyndham, Vol.3.

https://labs.geocaching.com/goto/f59a64da-e417-4763-ac30-0c1843165478

To get the coordinates for this cache, you must first complete the Yes, but is it art, in Wyndham, Vol.3 Adventure Lab, visiting five locations in sequence.

If you have not done so already, download the Geocaching Adventure Lab App from your App store to your smart device. When in the vicinity of the posted co-ordinates, open the Adventure Lab App, log in to your Geocaching.com account and look for the Yes, but is it art, in Wyndham, Vol.3. Adventure Lab. The Adventure Lab will take you to 5 locations, and each location will require a question to be answered before you can move to the next location. You will receive a clue for this cache at each completed location. Once you have completed the Adventure Lab, you will receive remaining information needed to calculate the co-ordinates for this cache in the final journal entry. If you are having trouble locating the final co-ordinates, scroll through the journal entries on the front page of the Adventure Lab.

BYO Pen.

We hope you enjoy the tour.