Kayakers on a sunrise tour spotted Batman standing on top of the Sydney Opera House on Wednesday morning. Police first told 9News it was for a film shooting in town, but the Batman sequel is filming in London. It was a stunt for Batman Day, which DC marks on the third Saturday of September, with a public event planned at the Opera House on Saturday evening. Nobody has confirmed who put him up there. (Via @sydneykayakx) #batman #sydney