Except from sports activities,Lycee Leonin has notable cultural groups and students clubs in the High School,including the Theatre Club,the Film Club,the Dance Club,the Scenography Club,the Cooking Club,the Environment Club,the History Club and the Mathematics Club.Students in the Computer Club also print annual yearbooks and monthly newspapers.
The school also gives its students the chance to explore the various professions through the "Career Orientation Day",in which professionals from all the professions gather in the school to talk about their professions.