For one night a year in Paris the idea is to stay awake and partake in the observance of night. Many public services, entertainment facilities and tourist attractions, cafes, bars and restaurants stay open throughout the night to help keep people awake. The white night is a celebration of human culture and communication and encourages people to enjoy one another's company; you are meant to appreciate all the things you don't find time to do during the daytime ratrace and everyday routines, like have long conversations, enjoy drawn out dinners, and play games. It is a wonderful tradition, widely celebrated, and a really special night to find yourself in Paris. You can stroll the famous streets, eat out and even visit certian attractions and it is a good night to socialise and perhaps meet some locals. The Nuit Blanche is primarily an arts festival so the galleries and museums often remain open and let people in free of charge; the city becomes a sort of all-night art exhibition. And Paris is incredibly well-equipped in this regard.
Date: First weekend of October annually.