The Mayday is an event of electronic music, which takes place annually in the Westfalenhallen in Dortmund. It is regarded as the largest Indoor-Rave in Germany with from 20,000 to 25,000 visitors per year. Mayday is a epical movement, in which you feel an active participant! It is a union of thousands of people on the dance floor, who are driven by the only idea!

The Mayday is an event of electronic music, which takes place annually in the Westfalenhallen in Dortmund. It is regarded as the largest Indoor-Rave in Germany with from 20,000 to 25,000 visitors per year. Mayday is a epical movement, in which you feel an active participant! It is a union of thousands of people on the dance floor, who are driven by the only idea!