A hands-on technology/science center for the young ones.
Akwarium Gdyńskie
The aquarium. Largest sea zoological museum in Poland showcasing many kinds of sea fauna and flora. Operating since 1970s.
Open air museum of marine weapons, helicopters, cannons, torpedoes, fighters.
Warship museum
Warship ORP Błyskawica (Lightning) started service in 1937 and operated during World War II. You can see deck with artillery, engine rooms and a historic exhibition display of the Polish Navy.
Tall ship museum
It's the most famous Polish training tall ship. It was built in 1909.
Muzeum Emigracji w Gdyni
Opened in 2015 this museum does an excellent job at explanation Polish migrations from the Middle Age to present day Poland and their consequences for both Poland and the countries that welcomed Polish people.
A hill with nice panoramic view, also possible to see Hel peninsula.