While booking our trip this year I went to the universalorlando.com page and checked out the theme park hours and at the bottom there is a footnote with this : Universal's Cinematic Spectacular: No shows on 9/6 - 9/8, 9/19, 9/21 - 9/22, 9/27 - 9/30, 10/4 - 10/7, 10/11 - 10/14, 10/17 - 10/21, 10/24 - 10/28, 10/31, 11/15, 12/5
Is this the lagoon show or something else that won't be happening during HHN?