If you only have time to visit one of the four branches of Gdańsk's Maritime Museum, make it this one - the main branch and most comprehensive of the lot, located inside three Renaissance granaries across the river from the Crane. A complete history of Poland's nautical history is represented on several floors and includes old cannons, huge oil paintings, harpoon guns, a hall dedicated to underwater archaeology, shipbuilders' hard hats from the Lenin Shipyard, a few pieces of modern art and an extensive collection of model ships. Information is available in English.

NOTE on Ticket Prices:
The museum's interactive exhibition Ludzie-Statki-Porty (ENG: People-Ships-Ports) is available for 12 zł / 8 zł. 

A regular ticket for the Granaries costs 12/8zł and is free on Wednesdays.

Keep in mind that combined tickets are available for the museum-owned granaries, Sołdek ship museum, the Crane and the Maritime Cultural Centre including the interactive exhibition for 30 zł / 20 zł. However, if you do not want to include the interactive exhibition in your ticket, it will be 25 zł / 16 zł.