It may go without saying that your visit to Japan may seem incomplete without a proper visit to a castle. This may be a bit tough as so many of the ancient castles have been demolished throughout wartime. But you are in luck. One of the original 12 castles still exists in Ehime Prefecture. Come and visit, and stand on the ancient stones of Matsuyama Castle.
This is a real experience! And the great thing is that you will not be crushed by either barbaric hoards, or thronging bus loads of tourists!