The SummerDays Festival grew out of the Tufertschwil open-air festival in 2007 and has been held with great success in Arbon right on the shores of Lake Constance since 2009. Thanks to the special mix of open-air festival and folk festival, the attractive programme concept and the idyllic setting, the event has established itself firmly in people’s festival calendar and enjoys a great deal of popularity. Not only in Switzerland, but also in neighbouring Germany and Austria. In 2018, the boutique festival celebrated its 10th edition in Arbon.