Stena Line ferries from Karlskrona, 500km south of Stockholm, arrive at the Gdynia ferry terminal. From Gdynia ferry terminal, take buses N° 150 or F to Gdynia Główna, the main train station in Gdynia (from where there are commuter trains to Gdańsk). A bus ticket costs 3,20zł (4,20zł for the faster line 4), and a taxi to the centre should come to around 20zł. If arriving by car you should follow the signs for Centrum which will bring you to the centre of Gdynia in about 10 minutes.