Cruise secrets: Crew reveal how cruise lines benefit from changing the itinerary on route

“This meant that passengers would embark at one port and disembark at a different port, but often the ship sailed without passengers while repositioning.”

He told how one vessel on which he was travelling, The Triumph, originally had a home port of New York City, which switched to Charleston in South Carolina.

This later changed to Miami as its final home destination port.

Jay added: “It only took a day to reposition the ship each time, so instead of booking passengers for a one day cruise, the ship sailed empty.”

Meanwhile, passengers may also be advised to listen out for particular language used on board.

During their downtime, a cruise ship employee has revealed the secret language they use to communicate, especially during times of stress and disturbance, when a code language may be needed to prevent passenger alarm.