Most of Carnival's cruise ships will sail to its upcoming private island-like port outfitted with waterslides, bars, and an adult-only club.

At least on some cruise lines, sailings often entail additional costs passengers are not expecting. Some new cruisers literally board the ship not realizing that their cruise fare is not all-inclusive.

"As the International Day of Awareness of Food Loss and Waste (Sept. 29) approaches, Carnival Corporation and its Italian cruise line, Costa Cruises, are sharing inspiring achievements and progress on food waste reduction goals that help support a more resilient food future," Carnival shared.