Spent most of the day travelling from one side of Australia to the other. Sydney to Perth is a 5 hour (and 3 time-zones) flight. It seems quite quiet after Sydney. Sydney has got a big-city feel to it, although a big city with a beautiful harbour and beaches. Perth has got a small-city feel to it. Perth is only about a quarter the size of Sydney population-wise. Perth’s claim to fame is that it is the most isolated city in the world. ie the furthest away from other big population centres. The nearest similar sized city must be Adelaide about 1500 miles away.