It's possible.
There is a Port in Glasgow its on the River Clyde
No, The ship does not have wheels so it would be like pushing some hundred tons.
Yes, cruise ships commonly dock in areas where the tourists can spend several hours shopping. Also, there is shopping typically available on the ship.
I am pretty sure cruise ships are built in dry docks where they can be flooded to float the ships. This is something i saw on Discovery channel on tv. Once the ship is complete they can flood the dock to float the ship to the ocean.
A cruise ship passenger is someone who is on a cruise ship during a cruise.
A cruise ship tourist is a person who tours you around a cruise ship.
It is a cruise liner or cruise ship.
A cruise ship passenger.
A cruise ship passenger.
Symphony of the Seas cruise ship retains the title of the world's biggest cruise ship in 2020.
About 10 for a large cruise ship. About 6 for a small cruise ship. By the way you would say decks not floors in a ship.