This cache IS NOT at the posted coordinates but will lead you very close! To find the final location simply figure out what to do with this cache final is no longer at the tree but near by see hint for extra clue :
gur svany vf abj n zntargvp anab ba gur sver ulqenag, evtug orgjrra gur gjb gerrf Gur anab vf oebamr fb vg oyraqf va jryy jvgu gur oevtug lryybj sver ulqenag. Vg'f ba gur fvqrjnyx fvqr.