Woman half way into world's longest cruise shares the worst thing onboard the ship

A passenger on the world's longest cruise holiday has revealed the things that she dislikes the most about the excursion.

The average cruise ship holiday is going to take up a week or two of your year, with thousands every year taking to the open seas across the planet as a form of rest and recreation.

A particular crowd even opt for what are known as 'spicy' cruises, where they share partners with other passengers.

Well, as unique as a swingers' cruise might be, there's another kind of cruise that might take the biscuit.

We're on about Royal Caribbean's Ultimate World Cruise, which sails consistently around the world for nine months.

Lasting for 274 days, it takes thousands of passengers to the likes of the Great Pyramid of Giza in Egypt and Sydney Harbour in Australia.

Royal Caribbean's 22-year-old ship, the Serenade of the Seas, is the vessel that is sailing around the globe almost consistently, with it having a capacity of 2,490 paying customers.

Now, one passenger half way through the current tour of the Ultimate World Cruise has revealed the things she thinks are the worst thing about the nine month venture.

Leah Bott is on the RC ship with her husband Steve, having set sail at the start of the year.

Leah Bott and her husband Steve (Royal Caribbean Blog)

Having a '10 out of 10' time on board Serenade, Leah said it was '100% worth it', and they have been able to do everything they wanted to.

That's included Royal Caribbean coming up with alternative plans when the weather has meant the original excursion plans have had to be scrapped.

"Missing out on Machu Picchu was a big disappointment. But the cultural locations we were able to explore in Cusco and the shows they set up for us in Lima were amazing last-minute substitutes," the American wrote over on royalcaribbeanblog.com.

Royal Caribbean's cruise ship Serenade of the Seas (Feature China/Future Publishing via Getty Images)

"For me, the Ultimate World Cruise has been life changing. And I expect this will continue over the next four and a half months."

But there's been one main gripe with the ship itself, despite the good times that have been had. And I suppose after four and a half months at sea, your opinion gains a bit more credibility than those who only cruise for up to a fortnight or so.

Leah said: "If you are following any of the content creators on this ship, you have probably heard this complaint.

"The noise. Everywhere. All the time.

"I do love the layout of the Serenade. I only have one other ship to compare it to – the Adventure of the Seas.

Serenade of the Seas (Jeffrey Greenberg/Universal Images Group via Getty Images)

"But in my opinion, the design of the Serenade is much better. It’s too bad it doesn’t have a Flowrider [surf simulator], but that’s another issue.

"The one bad part about the Serenade design is the openness of the Centrum [the open middle point of the ship where everything comes together].

"The noise that reaches this area flows up from Deck 4 to 12. It is annoying and problematic."