Available until the end of September officially (maybe longer subject to the weather), the Statek Pirat (Polish: Pirate Ship) has become a feature of Sopot in the summer. The 40-minute cruise (which depart every 80 minutes) around the bay is strangely-therapeutic, particularly when you take advantage of their on-board bar. Also, keep an eye out for their onboard galley serving simple-but-decent Polish dishes.