Cache is not at the posted coordinates. There is a puzzle to solve first.
The fourteenth in a series of puzzle caches (published alongside a hare themed bonus) with the common theme being that they are all situated "Inside No. 9". The Chiltern Society's Footpath Map No. 9 that is...what else could that mean?!
The Puzzle

Congratulations to FamousEccles on the FTF!
Chmmyr: Guebhtu gur ubyr.
Pnpur: Va gur oevqtr.