This cache is not at the posted coordinates! Please don't go there, you'll freak out the muggles! In order to find this cache, solve the puzzle below:
When I was out placing this cache, I happened across a local that told me exactly where to place the final. Now, I don't speak his language, but I did my best to transcribe the coordinates correctly. Here is what he told me.
Osqm esem esem ofpj esem osqm lajmm osqm osqm vmjf.
Maybe you'll do better than I will at solving this cipher!
You can validate your puzzle solution with certitude.