Few passengers know that this item, which many people pack, is no longer allowed onboard (it technically never was).

Cruise lines get blamed for things outside of their control. Passengers, for example, might expect a refund when their flight gets canceled and they miss their cruise. They also often expect the cruise line to pay if the ship gets delayed and they miss their flight.

Carnival (NYSE: CCL) (NYSE: CUK) finished 2024 in a solid financial position. Investors who bought the stock a year ago might be tempted to take profits, but there's tremendous demand for cruises that could drive more growth for Carnival. Here's why Carnival shares can hit new highs in 2025.