This is a Bonus Cache for the St Peter's Church & Stanley Cemetery Adventure Lab. The Cache is not be at the posted coordinates, but may be found at:
N 53 42.ABC W001 28.DEF
The Adventure Lab is in the grounds of the former church & cemetery, wherever you finish, you will not be too far from this Bonus Cache. However, if you want to reduce your walking, I suggest that you Park as advised in the Adventure Lab.
As always, stealth may be required, and please take care to replace the cache as found.