Extracurricular clubs are groups or communities that meet outside of regular school hours for activities and interests that are not part of the normal curriculum. Full definition
All 400 pupils were taking part in extracurricular clubs. (bbc.co.uk)
Encourage students and staff to lead professional development, develop new programs, lead extracurricular clubs or activities and share best practices. (inservice.ascd.org)
For instance, community service, extracurricular club participation, and other activities that helped you build skills can all be listed in the work experience section. (livecareer.com)