Once apon a not-so-medievil time, the church gates were locked. The sapper couldn't get in the normal way (normal for other people) so he decided to get in the normal way (normal for him). Soon he realised that he didn't actually want to get in and that he was just a tool used by the narrator to justify this listing and that caused him to do the sensible thing and leave an awesome cache.
The church is the: NG Kerk - Quaggapoort. It is a magestic building with a clock on it's steeple (the clock can only tell the right time once a day).
There is no need to go onto the property - the sapper didn't.
Bring your own pen.
It is called Church Sapper because English Turtle and I decided against calling it Fruitloop.