On 25 April 2014 the Farina ANZAC Memorial was officially opened acknowledging those men from (or with a connection to) Farina who served in WWI or WWII.
At the posted coordinates you will be standing among the various parts of the memorial.
Find the curving row of 9 plaques. Seven are for soldiers. Find one of two plaques for an airman who served in WWII. You want the higher ranking one.
Gather the below information from the plaque.
His service number is ABC
He enlisted on DE.FG.HIJK aged LM
He was killed in action on NP.QR.STUV serving in WX Squadron.
The cache can be found at S 30 03.GQM E138 1B.UJE