This cache is not at the posted coordinates.
In order to find the location, you will need to compete The BEST 15 Years Adventure Lab at Lake Ontelaunee.
Special thanks to RocKhead for the painted decorations on the container!
As you work on The BEST 15 Years Adventure Lab, look out for a string of letters in one of the journal entries.
Take that string of letters and apply a Caesar shift to form a keyword. The shift you need to apply is an important number associated with this cache.
Once you have the keyword, enter it in the Certitude checker below in all caps with no spaces:
You can validate your puzzle solution with
certitude.