Porto Fossone is situated at the mouth of Fiume Adige. Entry is restricted by sandbanks over which the depths are very shallow and which are subject to constant silting and change. Piles extend about 550 m seaward from both sides of the entrance. A breakwater, the end of which is marked by a light-beacon (E cardinal), extends about 400 m to seaward on the N side of the entrance. The river connects with the inland channels of Laguna di Venezia and is navigable by small craft as far as Verona. A light-buoy (special) has been established about 2 miles ESE of Porto Fossone.