Do not go to the posted coordinates, unless you want to find yourself in the middle of a lake and the cache isn't even there! To find the actual coordinates for this cache, you must complete the Adventure Lab - Tour of Historic New Harmony.
If you've never done one before, all you have to do is download the Adventure Lab app to your phone and click the link below! It's that simple not to mention it opens up a whole new dimension to caching!
Then click on this link to access this particular set of caches: Tour of Historic New Harmony
This Adventure Lab will take you on a tour of 5 interesting spots here in New Harmony and at one of those stages, you will be rewarded to the coordinates for this cache. Not to mention you will get 5 Lab Caches added to your cache find totals! Enjoy your tour!