When DCA closes at 8:00pm like the later part of April, WOC starts at 8:30 My guess is because of Daylight Savings Time it isn`t dark enough for the show. It`s great afterwards , walking out with the park empty , and they will let only the people staying at the GCH ( maybe PP and DLH, too ) use the path past Grizzly River Rapids to exit thru the GCH turnstiles