Porto Mercantile within Mar Grande, is situated between Porto Industriale and Taranto Vecchio. It is a small commercial basin open S. Close NE stands another part of Taranto, the modern town of Borgo della Stazione. Ponte di S. Egidio, a masonry bridge with three passages through it for small boats, in the NE corner of Porto Mercantile, joins Borgo della Stazione with Taranto Vecchio. The three boat passages form a natural access from Mar Grande into Mar Piccolo. The W side of the harbour is formed by Jetty No 1 (I Sporgente).