To celebrate those lucky enough to attend the 2014 Oz Mega and to enable those less fortunate to find some caches, a mint tin in a tree. It is NOT at the listed coordinate.
The cache is hidden at S31 59.ABC E115 48.DEF where the values of A,B,C,D,E & F are obtained from the puzzle below.
You can check your answers for this puzzle on GeoChecker.com.