I had to google Grey Nomads - love it! One of my travel dreams (once I am too old to be jetting all over the world) is for me and hubs to drive right round the English coast in a campervan, so many places I haven't been in my own country. Not quite so easy to do in Oz I guess, but I bet plenty still do it!
I would love to travel the UK in one of those cute little river boat things that travel the locks. That's my idea of heaven