Since the 16th century, Brussels has had its own harbour, the port of Brussels. It has been enlarged throughout the centuries to become the second Belgian inland port. Historically situated near the /, it lies today to the northwest of the region, on the Brussels–Scheldt Maritime Canal (commonly called Willebroek Canal), which connects Brussels to Antwerp via the Scheldt. Ships and large barges up to 4,500 tons can penetrate deep into the country, avoiding break-ups and load transfers between Antwerp and the centre of Brussels, hence reducing the cost for companies using the canal, and thus offering a competitive advantage.