Djurgarden ferry departing Grona Lund tivoli in Stockholm Sweden

djurgarden ferry stockholm sweden djurgaarden boat gronalund grona lund departure ferryboat vessel ship travel passenger sea water surface rollercoaster tivoli amusement park summer swedish public transportation infrastructure scandinavian landscape stan passenger ship terminal commuter sodermalm port harbor dock transport blue sky fun tourism wheelhouse small efficient energy exhaust co2 timetable contract