A great experience. The one-hour content walked into several main exhibition spaces. As long as there is no rehearsal room on the day, the guide will take us to the tour and introduce us with due diligence. The guide will not only introduce the building of the opera house. In addition to the background and craftsmanship, we also took us to admire the Sydney Bridge in a few corners that ordinary people would not enter, so that even children can have a full experience.