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 Anglican Church Langhorne Creek located 69 Bridge Rd Langhorne Creek.
St John’s Church was built in 1929 as a result of a great deal of effort by the local parishioners.
The foundation stone was laid by Sir J L Stirling KCMG on 8/6/1929. Note that this date is different to the date on the foundation stone due to the unavoidable absence of Sir Lancelot Stirling.
The church was sold in 2023 and the last service was held May 2023.
The date you will need is on the foundation stone.
Let ABCDEF be the date on the foundation stone.
The cache can be found at
S 35° (B)(F-E).(D-E)(A-B-C)(A+B) E 139 (B-C)(E).(D-F)(B+C+E)(C)