If you get a chance to sit behind the wheel of a rig that can hit a trail or two, it sounds like you'll be near the Snowy Mts. (great trails).
If you have some extra time, I would suggest the mts. around Victoria (beautiful area).
I spent a half a year driving around Oz. in the '90's, east to west, and back again...(my brother has a place on the west coast-duel citizenship).
No matter what you do, you'll have a blast...great people, wonderful country!
'02 Montero: OME suspension, ARB front bumper, sliders, homemade 4mm skid plates and spare tire Blitz can mount, extended breathers,
K&N air filter, Optima Yellow Top, BajaRack, IPF lights, Goodyear Duratrac 265/75/16's, RUD 4x4 Grip Chains