The C1 level English extracurricular activity is designed for ESO and Baccalaureate students who seek to perfect their command of the language and reach an advanced level of proficiency. During sessions, students work on developing advanced language skills, including understanding complex texts, formal expression, and fluent communication in academic and professional contexts. Classes are held once a week, with schedules adapted to the needs of the students. At a cost of 24 euros per month, this extracurricular activity provides an excellent opportunity to improve English in a formative and stimulating environment.