Carnival Cruise Lines has long promised that travelers will have a wonderful cruise on their ships or get their money back. Last year, Carnival ramped up that promise even more with its “Great Vacation Guarantee.”

Now Carnival has announced that its popular guarantee will be offered again in 2015.

The deal guarantees that passengers who are not enjoying the cruise can notify the ship’s management within the first 24 hours of the voyage and receive a 110 percent refund plus complimentary transportation home. The guarantee also adds $100 shipboard credit for a future cruise.

Carnival is proud to carry nearly 4.5 million satisfied guests each year and is very confident in the quality of the vacation experience provided on board the 24 ships of Carnival Cruise Lines, officials said

The “Great Vacation Guarantee” is designed to provide an assurance to those consumers who may be considering a cruise that the company stands behind its and, if they are dissatisfied for any reason, passengers have a simple and hassle-free means for receiving a full refund and more.

Carnival will fully handle all the necessary travel arrangements to make it a truly hassle-free experience. In the event the cruiser drove to the port of embarkation, Carnival will arrange complimentary transportation back to that port.

If other guests in the same party do not want to exercise the Carnival Great Vacation Guarantee, they can stay aboard and continue their cruise.

To make the deal even sweeter, all incidentals will be refunded as well – 100 percent of the cruise cost, plus government fees and taxes, the Vacation Protection Plan, prepaid gratuities, and unused pre-purchased services such as the spa and unused shore excursions.

Then Carnival will top that with an additional 10 percent, which will be mailed via check. Or disgruntled travelers can receive that 10 percent as cash at the Guest Services desk.

Why is Carnival taking this gamble?

As the Carnival Cruise Lines website notes, “We believe, and have so much confidence in our product, that we felt it was appropriate to make our guarantee even stronger. We’re proud of the experience we deliver to the millions of guests who cross our gangway each year.”

Story By Jackie Sheckler Finch