From tomorrow (Friday) evening till next day (Saturday) morning celebrate we Midsummer!
This is the most unique day in Sweden which starts between the dates 19.06 - 24.06, from Friday night till Saturday morning. the whole story you can read on wikipedia
There are several traditions connected with Midsummer. People are raising and dancing around a maypole (majstång or midsommarstång) is an activity that attracts families and many others. People dancing around the pole listen to traditional music and many wear traditional folk costumes. The year's first potatoes, pickled herring, sour cream, and possibly the first strawberries of the season are on the menu. Drinking songs are also important at this feast, and many drink heavily.
Have a nice Midsummer!