To find the cache you are going to have to utilise the code AFBEHG along with the images below.
GZ is at S32 17.ABC E115 42.DEF
In order, images ABC are
In order, images DEF are
The cache is a green ammo can located not far off the road with a lay-by (I think that is the term) within meters of GZ. Original contents are some small toys that were in my swag bag along with a FTF certificate, pin and some scratchies. As well as the usual log book and pencil.
Congratulations to rudi63 on their FTF.