Hey Medic welcome. I would start with a real holiday at a place called Turon Gates, whether u camp it or cabin it, kids will love it and is in prime gold country 2.5 hrs from Sydney. That's where I would start.....if you love that spot you will be hooked for life and will be able to handle some of the rougher places. Can even drive from there to Sofala if u have a map. 4WD only, even though a VC commodore has done the trip lol. Lots of spots to detect if u don't like panning.
A weekender to remember...esp if u get a cabin! Not inexpensive, even camping prices are very high. But its like a resort in the middle of the Aussie bush and so close to Sydney. Ive also nailed a few nice trout there in spots u would never think a fish can exist!
Went to detect an exposed area where a pipe had been laid near a cabin.....and the manager told me two blokes came by that yesterday for a few grams in nuggets.