An "illegal rave" is an unlicensed party, often featuring electronic music and dancing, held in unconventional locations such as warehouses, forests, or abandoned buildings. These events typically lack permits and can attract large crowds, creating concerns about safety, noise, and potential legal issues. Participants often seek the thrill of underground culture and the sense of community that comes with these gatherings. While some may view illegal raves as a form of artistic expression, authorities often intervene due to concerns about drug use, public safety, and the disruption of local neighborhoods.