A couple of years ago I had a really good holiday in Perth - went to the Mint and the Bell tower and a street art tour and a day trip to Swan Valley wineries and went to Fremantle prison, heritage listed from convict times and a day trip to Rottnest Island.Very early on in my life I went to the Sydney Opera House on a school trip. We saw a piano recital and I fell asleep.
Perth City Centre is extremely boring. Nothing actually to do but walk around and window shop. Perth has been dubbed Dullsville for good reason.
Fremantle? Exactly the same, a run-down place trying to entice people so they can walk around and spend their cash. Fremantle recently held the Sail Grand Prix, made exclusively expensive, general public could get nowhere near the shoreline, even the highest point, the Roundhouse, was fenced off, and patrolled by police to keep the hoi polloi away.
Small country towns, nothing there, open up latish, close early, nothing after dark. Extremely boring
Haven't been to Canberra for many years - but it really isn't a tourist destination. Is mainly just the admin centre ofp government
Less than a tenth the population of Melbourne or Sydney and even Brisbane,Perth, Adelaide are much bigger than Canberra. And no beaches.