When we were there in May, we saw them in front of the big Sorcerer's hat in the morning (I want to say around 10:30 AM or so). They were posing for pictures and making their way through the park! We didn't expect to see them at all! We only caught them for a minute or two, but it seemed like they were there for a while, cause there was a huge crowd around. I can't confirm that they still do this, or what the schedule is though, sorry!