The cache is not at the posted coordinates, solve the following puzzle to get the coordinates.
ANZRO CFNRR KCGKU TNFCN UWPBA KLZIC
AQZRO AHORR IDGIR RKHAN RWMAC NUUNG
CKWTL CBORW LEHLY XICEF GKRRI FCQWZ
You can validate your puzzle solution with
certitude.