Time for an easy one! To find this cache, a little cryptanalysis will be required to get the final co-ordinates. The following message can be decoded in a very straightforward (yet unusual) manner to reveal the co-ordinates.
arbpb boqnh lobma pqasj bbbeg hhbcf cocih cddde pehdd dedde
siqhk niilh tipkk ilolk klsru uomnu nckcp krcsc kcncn qqrsq ttrrs tpttu oukun
