Torre Pietra wasn't only meant to signal dangers from the Adriatic. The waters of Lake Sàlpi also needed to be monitored. During the reclamation of the lake, the tower was used as a technical office, and later as the Command of the Guardia di Finanza brigade. Fishing activity in Lake Salpi, which has now disappeared, was intense for centuries, and customs controls were managed from the tower.

The gaze toward the waters, when you have to defend them, is naturally full of attention and suspicion; at Torre Pietra, the suspicion was twofold.

The reclamation and modernization projects we discussed in previous audio segments marked an anthropological turning point.

As artist Luca Coclite put it: "The towers, true habitats of memory, carry the significant burden of our identity and allow past realities to resurface from history. They serve as place holders, ready to point out magical places, eternally fragile, meditating on a horizon that once was a healthy carrier of danger and induced the natives to look at the sea with suspicion; an element to keep at a safe distance. That sea, today, thanks to a process that began with the weakening of pirate raids, tells us the opposite. This progression has accompanied an entire territory toward a kind of renewed confidence in the coasts but has exposed itself to a new and insidious phenomenon: tourism."