While many Americans opt for destinations by air, a new report reveals a record-breaking number of people will be seeking trips on the high seas this year.

AAA has released its first-ever "Cruise Travel Forecast."

It projects that 19 million Americans plan to take cruises this year.

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Last year, 18.2 million travelers went on cruises, according to the report. 

"What we’re witnessing in the cruise industry is nothing short of amazing, but it’s no surprise. There’s a reason most first-time cruise passengers become repeat cruisers," said Stacey Barber, vice president of AAA Travel, in a press release.

Barber added, "Cruise vacations offer something for everyone, no matter their age." 

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"And because most of the vacation is already paid for," he said, "travelers can focus on enjoying themselves and making lifelong memories with loved ones."

The cruise forecast report found that 72% of passengers are heading to Caribbean destinations in search of sunny vacation times.

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Six percent plan on heading to Alaska, while 5% of people will be cruising in the Mediterranean, according to the report. 

The report also found a rising interest among travelers in taking shorter cruises that last two to five days. 

While most cruises run six to eight days, 18% of Caribbean cruise itineraries this year are shorter cruises — compared to just 2% in 2023.

Air travel has certainly changed over time, and an occasion that once mandated dressing smartly has become considerably more casual. 

Recently, Spirit Airlines issued a new dress code for its flight passengers, after several news-making instances regarding customers being removed from flights due to their attire.

Now, customers on Spirit Airlines are subject to being removed from flights if they are "barefoot or inadequately clothed (i.e., see-through clothing; not adequately covered; exposed breasts, buttocks, or other private parts), or whose clothing or article, including body art, is lewd, obscene or offensive in nature." 

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Here are some other rules that airlines have regarding clothing. 

Passengers on Hawaiian Airlines are prohibited from wearing bathing suits, and "clothing must cover the upper part of the torso," says its contract of carriage. 

Shorts are fine, but "speedos and bikini bottoms are not allowed," said Hawaiian Airlines. And bare feet are not OK either.

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"In all cases, clothing must not be lewd, obscene or patently offensive to others," said Hawaiian Airlines. 

Southwest Airlines passengers cannot wear clothes that are "lewd, obscene or patently offensive," and passengers must wear shoes. 

Similarly to Southwest, passengers on United have a pretty loose dress code. 

United Airlines' contract of carriage specifies that passengers must be "properly clothed." 

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Clothing cannot be "lewd, obscene or offensive" as well — and passengers have to wear shoes. 

American Airlines' code of carriage does not specify what is not allowed, but it does say that passengers have to "dress appropriately; bare feet or offensive clothing aren’t allowed." 

Delta's code of carriage does not have a specific dress code.

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It does state that passengers can be removed when their "conduct, attire, hygiene or odor creates an unreasonable risk of offense or annoyance to other passengers." 

Qatar Airways has a dress code for passengers in business class and above, says its website. 

"Depending on your destination, there are different rules and regulations regarding the type of clothing you should wear. The dress code is designed to ensure passengers' comfort and safety while traveling, so it is important to understand the rules before departing," said Qatar Airways. 

This dress code prohibits shorts, sportswear and "overly revealing clothing," and business class passengers should be dressed "smart casual." 

"Passengers should pay attention to the dress code when traveling in business class, as it will ensure their comfort and respect for other passengers," said Qatar Airways.

Visiting Liverpool in Merseyside, England — the fifth-largest city in the United Kingdom — could start costing travelers a little more than before as government officials devise a strategy to curb overtourism.

Officials are planning to impose a tax on visitors this coming summer, charging nearly $3 (2 pounds) per night per person for overnight stays, according to Liverpool Business News.

The potential tax comes as locals struggle to keep up with the growing number of tourists to the area.

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"The proposal would see the charge, which would be administered by hotels, going directly into the visitor economy and helping to support its growth and development," said a Liverpool's Accommodation Business Improvement District (BID) press release. 

"It would also go toward improving the public realm, including street cleaning."

About fifty-four million visitors traveled to Liverpool City Region in 2023, up four million from the previous year, according to the government’s Liverpool City Region Combined Authority website.

The release continued, "This would relieve pressure on the public purse and would ensure that the hotel sector would get a say [about] how the funds [are] spent, helping to drive a more sustainable and viable visitor economy in the future."

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Liverpool BID predicts the levy would contribute nearly $8 million to the city over the next two years.

Bill Addy, CEO of Liverpool BID Company, said in a release the group has been in close contact with the local hospitality business on the tax proposal.

"It is hotels and serviced accommodation providers who would be administering it … Therefore they should have the final say," said Addy.

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Addy also said, "The method we are proposing reflects similar models across European cities, which work successfully and, if replicated in Liverpool, will translate overnight stays into major investment in attracting world-leading and world-beating events to the city." 

Other international vacation destinations have implemented taxes in an effort to curb tourism.

Greek officials, for example, are planning to impose a $22 tax on visitors cruising to Santorini or Mykonos, Fox News Digital reported in September.

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And the Maldives in South Asia, known for its clear waters and luxury resorts, has raised a flight tax aimed at tourists leaving the islands.

Fox News Digital reached out to Liverpool BID for comment.