At my school Harry Miller Middle School, clubs that take place during recess include a choir, a book club, a LTBTQ+ club, and a group called Bears who Care (who support groups in KV.) We also have a tech club, a music club. For groups that happen after school, there's a junior and senior band, a Dungeons and Dragons club (a role-playing club), an art club, and a ski club (which goes to Poley Moutain every Wednesday during the winter),
If you are interested in sports, our school does basketball, softball, soccer, badminton, and volleyball,. These sports all each have a junior varsity and varsity team (varsity is harder than junior varsity). Teams that don't have a junior varsity team are cheerleading, cross country, team and track and field. If you want to be in one of these groups, you'll have to try out.
We have some PRA classes, like tech, music, and art. In tech, you can choose from a lot of different courses to do, like Photoshop, iMovie, Code, Scratch, Lego, Keynote, Word, PowerPoint, SketchUp, Stop Motion, and Skyz/Pivot. In music, you can learn guitar, drums, GarageBand, flute, clarinet, saxophone, trombone, etc., and music theroy and history.
I'm not really sure about high schools, but do I know that Rothesay High School has a hockey team, and Kennebecasis Valley High School has two or three different bands, one of which incude a jazz band, and they also have a really good drama program. Saint John High has a violin program, and also has a pool in it, so it's possible that they have a swim team.
Please note that this MAY NOT INCLUDE ALL CLUBS AND TEAMS. It is highly possible that I've forgotten some, so please keep that in mind.