Thanks for this nicely organized itinerary. Where did buy the Park pass? We are two people driving there and can only buy one Park Pass? wouldn't they ask us for two passes as we are two people?
You can purchase it on the parksaustralia.gov.au site. If you are driving by car, you only needed to scan one ticket for the gate to the park to open. Otherwise if you go via a bus might be a different situation.