La Magma is an artistic march that combines democratic engagement and creative expression to encourage young people to take an active role in political life. For the first time, La Magma is taking place in Agen, built around a local collective, to highlight struggles rooted in a territory outside major metropolitan areas. This decentralization aims to give visibility to often overlooked actors, in a place where young people and committed artists have few opportunities for growth and expression. By reinventing forms of mobilization, this project transforms public space into a field of artistic and civic experimentation, where performances, music, and public speeches become tools of advocacy for social and climate justice. La Magma is therefore an immersive collective experience that trains young people in civic engagement and makes it a catalyst for ecological and social transformation.