confirmed... all of australia is on holiday then, so the GOR & peninsula will be very busy. Planning and bookings are required for any movements in these areas.
When family visited last xmas, I discouraged travel during this period, unless they had firm ideas/to dos - penguins & healesville sanctuary. Instead we enjoyed the city as it was relatively empty (but alot of restaurants closed during this period).
We jetted off to a resort in queensland instead of travelling around. Still had to fight the crowds, and it was expensive, but at least i was able to enjoy the holiday will my family as i was not driving!