That clip showed her dark, wet cabin reportedly without power and workers attempting to clean up the water in the hallway.
Carnival Cruise Line said the flooding was caused by “a burst water line” which they say impacted an area of the ship that “accounts for less than two per cent of its staterooms”.
“The ship’s team members cleaned the area and the pipe was fixed,” the spokeswoman told news.com.au.
The footage was enough to freak out viewers with some making references to the Titanic.
“The way I thought this was a literal Titanic experience museum or something at first,” wrote one person.
“I see that I’m going straight to the main deck, life jacket on just in case. I’m not getting stuck behind one of them gates,” said another.
“I see this and I am on the first safety boat out of there,” added a third.
A keen cruise-goer said: “I’ve been on several Carnival cruises and never had an issue but if I saw that much water I would absolutely panic.”
Another added: “Definitely my biggest fear.”
The Carnival Radiance was launched in 2000 and underwent a NZD$330m refurbishment in 2020.