It was a roadtrip thread, so you could have hijacked it
On the way, one of the things I want to do one year is to go to Parkes and check out the Dish. CSIRO Radio Telescope as shown in The Dish movie.
How old are the kids? Might be good to know to help plan stops as you might have an indication as to how far you might get before they get too ratty. Adelaide to Bathurst is approx 14 hours including rest stops as a guide.
Which way would you go to Byron? Over the Hay Plains and up to Dubbo and beyond, or up to Broken Hill and across from there?