This collection of caches has nothing to do with the Church Micro series in the UK. Given that the Australian 2021 census indicates that No Religion and Jedi Knight are still 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.
Pinnaroo Zion Lutheran church
Corner stone 11 Nov 1909, opened 10 Apr 1910, last service 9 Oct 1966, amalgamated with the nearby Bethlehem Lutheran congregation. Simple structure built of brick-cemented with a corrogated iron roof. Now a private residence.
To find the cache complete the Wherigo cartridge found here (username and password is the same as you use on www.geocaching.com). With this information it is probably best to leave your car were it is parked and walk to the nearby cache location.