This collection of caches has nothing to do with the Church Micro series in the UK. Given that the Australian 2016 census indicates that No Religion and Jedi Knight are the fastest increasing classifications of the optional religion question "What is the person's religion?" it is not surprising that there is surfeit of empty churches that have been repurposed.
St john's church was built in the late 1800's for locals, and another bulit behind it at a later date.
In order to be able to find the cache, yuo will need to visit waypoint 1, Gz is located at:
If there is 0 chimneys on the roof the cache is at:S 36° 47.551' E 143° 55.734'
If there is 1 chimney on the roof the cache is at: S 36° 44.441' E 143° 54.154'
If there is 2 chimneys on the roof the cache is at:S 39° 51.532' E 145° 14.521'
Happy Hunting!