The location is officially 49 Main Street, Clinton, NJ Studio #35

It is best to use 51 Main Street for GPS - this will bring you to the front of the building and The Stone Bean/Riverside Coffee shop. 

 

Go around right side of building following pathway to back area.

You will see a staircase to left, follow up to first landing then take staircase to right. At the top are two big red doors, go through and you will be facing STUDIO #35.