Fire is the BIGGEST threat to a cruise ship, not icebergs or sinking like with the Titanic

all cruise ships have these things called fire doors and they do exactly what you think to just help prevent the spreading of fire on a cruise ship

I've never seen these until this morning they were testing these out because we're at Port today and everybody's out on the island

look at these things they are massive they probably do a really good job at stopping fires