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.

Myponga Bible Christian Church
The church was erected in 1882 next to a 1856 chapel since demolished. A cemetery is located behind the church building. At union in 1901 the church became Methodist, and then Uniting after 1977. Church closed in 2020. Recently listed for sale. Stone and brick brick building painted all over white.
What feature is on top of the front of the church (4 letters)?