As I've recently had to Archive a couple of caches in Graveyards, after Groundspeak received a official complaint about them being located without permission.
From the email received
as these have not been the first ones in such locations which have been archived after a complaint was received.My anxiety about this is that, in looking for them, people will necessarily be rummaging around, even walking over graves. This is obviously a bit insensitive for those who have loved ones buried in the churchyard
I have after careful consideration after dealing with the current caches have decided to treat caches submitted for Review in Graveyards, in a similar way to caches in Nature Reserves or on National Trust/Forestry Commission land where no Blanket Permission Agreement is in place.
Any cache submitted which which has a Physical component within a Graveyard The owner will be required to submit proof of permission to place the cache, before the cache will be Published.
Any cache already published with a physical component within a Graveyard is of course Grandfathered in.But my advice if permission has not been obtained would be to obtain Permission to avoid the risk of the cache being archived, due to a landowner complaint to Groundspeak.
Once again to make it clear. I'm not refusing to publish caches in Graveyards, just requiring proof of permission before publication.
Deceangi Volunteer UK Reviewer Geocaching.com