Well I'm always aware of public holidays, you know standard ones you can find in a calendar. Last year however I got thrown a curve ball as I went to DLR during Gay Days... Almost 9pm and Space had a 3.5 hour wait... During the day all rides were in excess of 90 min waits, it was horrible. I now know to lookup gay days to avoid Christmas level crowds. I mean seriously a 45 min wait for a corn dog a DCA at 10pm??