Below ground level, we are taken into another world. Below water level, we enter the diving capsule.  There is a conch through which you can hear the distant but constant sound of the sea. As you approach it, the air that passes through, enters and exits through the curved surfaces, the conch becoming a resonating box. The sea is close and seems even closer, just inside the shell. Sound by Jaime Silva. Text by Joana Baço & Cristina Brito. Cover by Jaime Silva