Munich, six o’clock in the morning. Thousands of people are congregating in the Englischer Garten park. The sun rises in the Biergarten below the Chinese Tower. All eyes are on one woman: dance teacher Katharina Mayer. She takes a deep breath and closes her eyes. Then the music starts – and Katharina Mayer begins to dance. She twists and turns in time to the music, and invites everyone to join in. Soon the whole crowd is dancing – at Munich’s Kocherlball, the biggest and most popular open-air dance event in the Bavarian capital.