Half your luck Rotorbee to have the time and family situation to do this. Most of us would give their left nut for such a chance.
IMHO it has to be Queenstown, south island NZ. Winter or summer there is going to be some adventure stuff to do, and there are flight schools nearby for the CPL and any rating you want. Go for the slung loads endorsement (or swung loads endorsement in my case...) as it sharpens you up and reminds you that you are not that flash a pilot.
Also the transfer of an NZ rating to an Oz licence is relatively easy, so you get 2 for the price of 1. Some of the best ridge gliding in the world nearby, and plenty of stuff for young kids to do, depending on their age.