What lies beneath our feet? What is soil, and how important is it in satisfying our needs as human beings? With Sounding Soil, the Biovision Foundation invites you to discover the soil and its inhabitants, and to listen to what they have to say. Using soil listening devices, we'll be able to make sensory contact with often-invisible organisms and learn more about them. Meet at the Jonction Library for a stroll through the Bois de la Bâtie.