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.
Waitpinga Congregational Church
The building is an iron structure 30 by 20 feet, and is capable of holding 90 people. Opened 13 Jun 1936, pews from Newland Memorial church, organ from Parkin College. The congregation chose to continue as Congregational rather than join Uniting church. Services discontinued in 2014. Now a private residence with an architectural addition.
Count the number of arched windows on the east side of the building visible from the road to work out the location of the cache.
2 Windows = S 35° 25.520' E 138° 21.882'
3 Windows = S 35° 35.530' E 138° 31.883'
4 Windows = S 35° 45.540' E 138° 41.884'