Why is Six Flags Great Escape in Queensbury Closing Mid-Week? According to a post on the Six Flags Great Escape Facebook page, the amusement park will be closing on Tuesdays and Wednesdays this Summer, effective immediately. The reason? A shortage in staffing options. As of Monday July 19th, officials at Six Flags Great Escape states that the theme park and outdoor water park will be closed on Tuesdays and Wednesdays until further notice. Here are the NEW July operating hours as seen on the park's 'Hours and Schedule' page of their website. Get our free mobile app Mondays: Hurricane Harbor Water Park - 12p-6p