Held over the last weekend of August, the Tønder Festival is the most compelling reason to visit this corner of Denmark. Four days of folk and roots music across multiple stages — the main tent, churches, courtyards, and smaller indoor venues around the old town — draw top artists from across the world. The atmosphere is friendly, unpretentious, and genuinely celebratory: this is a town that takes its festival seriously.
Book accommodation well in advance if attending. Hotels in Tønder fill up completely, and many visitors stay in Ribe, Flensburg, or elsewhere in the region. Day tickets are available, but multi-day passes with camping are the way to experience the full programme. The combination of the musical quality and the charming old-town setting makes it one of the better music festivals in Scandinavia.