Extracurricular participation has displayed positive effects on student development; it is, therefore, worthwhile to investigate the factors that influence students' willingness and ability to participate in extracurricular activities held by the school. Through a qualitative research design, this study hopes to reveal how school culture and other factors influence extracurricular participation among local high school students in Hong Kong. Focus groups were conducted with students from three local schools, and teachers and administrative staff were interviewed when available. The study focused on four main themes: school and student profile, participation requirements, activity availability, and school mission and academic emphasis. Hand coding and data analysis suggest that principal and school attitudes influenced the activities available, while timing and activity arrangement significantly affected student participation. Overall, there were mixed opinions toward extracurricular activities.