Speedo. nl very successfully parasitizes on the grandeur of the Rotterdam port. The largest port in Europe really has something to see - 25 miles of docks, tanks, factories, railways, port cranes, and constantly scurrying boats, barges, container ships and tankers. For boys, I advise you to take not one and a half, but a 4-hour walk. Prepare sandwiches and Pepsi with you, as the bar on the boat is incredibly expensive.→