• Blubb play room for under-7s, an underwater corner of the Baltic with submarines, fish, sunken treasures and shipwrecks
• Weekend creative workshop (Ruskpricken) where kids and grown-ups make things together, with tickets sold at the reception desk
• Baby changing and breastfeeding rooms on the bottom floor, next to the toilets and the bag lockers

The Swedish National Maritime Museum tells the story of people and the sea through ship models, figureheads and real wreckage. Straight ahead from the entrance sits the gilded stern of Amphion, Gustav III's 1778 pleasure ship, with its cabin preserved inside.

Battle Stations! shows centuries of navy ship models and parts of the submarine Ulven. Under-7s get Blubb, an underwater play room with submarines, fish and sunken treasure.