This cache is NOT at the posted coordinates!
A simple substitution cipher using the language of Kenny McCormick.
pppppfpfffmpmfpfmpmfppffmppmppfmpfppppfmpfppffmfpff
ppfpppmppfmpmfppffmppmppffpmpppffppfpppmffpppmpp
fppmppfmmfmpppfpppmppppfpppmppmpfppffmfpfffmpmfppff
mppmppmpfppffmfpffmpfppffmfpffpppmffpppmppfmmmfffpf
You can validate your puzzle solution with certitude.