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.
Parndana on Kangaroo Island. The former Anglican Church. St Richard Of Chichester Anglican Church is a limestone structure of unknown vintage. The church closed in 2018 and has recently opened as a gallery.
To find the cache complete the Wherigo cartridge found here (username and password is the same as you use on www.geocaching.com).