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.
Monteith Presbyterian church
Built form local limestone with brick quoins. Previously services held in the Monteith Institute Hall. Foundation stone laid 25 Jul 1931 by Mrs D Gunn. No longer in church use and now a private residence.
Check the front of the building and determine the location of the cache.
Vent above the front door is triangle shaped: S35° 09.980 E139° 20.480
Vent above the front door is diamond shaped: S35° 09.480 E139° 20.980