This ticket office near the moat of Osaka Castle sells boarding passes for the Gozabune boat ride. The boat circles about half of the moat over roughly 20 minutes, with time given to take photos close to Osaka Castle. With an Osaka Amazing Pass, you show the QR code at the ticket office to exchange it for a boarding pass and then go to the pier, which is right next to the ticket office. When wait times grow long, the schedule can be pushed back for a shorter run.