Here, around the Étang de Berre, our bodies already know the story. Each breath carries a trace, each hair a memory of smoke, each plant a quiet reading of the air. Now an unprecedented network of pink metal structures emerges, tended by inhabitants who act and care for every device. Our project joins them, expanding this eco-citoyen constellation of sensors to reclaim a positive vision of Berre. Collecting becomes care. Measuring becomes solidarity. We read what the territory writes into our bodies, to make the invisible visible.