To get to the castle, you had to cross a bridge over the moat that once protected the castle from invaders.
Unfortunately my videos are very hard to hear (if you can hear them at all). I will still post them in case the sound will come out better on a computer with speakers. This video tells about Okazaki castle, one of the oldest castles in Japan. Before entering you must wash your hands a special way in the well. The castle was home to one of Japan's emperors and the shrine next to it is where people go to pray. Before praying though, you must ring the big bell to announce to God that you are here.