WET Open Air Festival

Every summer the WET Open Air Festival turns the Badezentrum, a public swimming complex in Sindelfingen, Germany, into a venue for electronic and techno music, with three stages spread across lawns and pools where festivalgoers can cool off. Organized by Munich-based promoters Permanent Entertainment, it ranks among Germany's biggest open-air techno gatherings, drawing tens of thousands of visitors in a single day. Entry is restricted to adults.