Santa Margherita Ligure
The Torrente San Siro begins at the merger of 2 smaller streams, the Fosso dei Casetti and Fosso Capellone just southeast of Pero. From there it flows northeast towards Via Aurelia. Then the Canale della Cantina and the Fosso dell'Acqua Bella flow into it. Further north the river flows under a path and then another tributary, the Fosso di Calcinea flows into it. The stream then changes direction and heads straight east and enters the town of Santa Margherita and flows towards the Sea mostly in Culvets.