Around the midsummer in northern Finland the sun doesn not set for several weeks. In Lapland this "longest summer day" lasts for over two months. Even in more southern places the night does not get dark at all, days beeing separated by a couple of hours of twilight.
Finns love late nights: Clubs in Helsinki often don't open before 10 pm and close at 4 am. At most nightclubs, you have to be 20 t...