It isn’t hard to remember that Royal Caribbean International is the owner of some of the world’s largest ships in the cruise industry, but have you ever wondered what comes after Allure and Oasis?

We present to you the world’s 10 biggest cruise ship s in the world and what makes them so grand.

The top ten are based on gross tonnage.

10. Carnival Dream, Carnival Magic, Carnival Breeze

Carnival Cruise scraped into the top ten with its Dream-class ships – Carnival Magic, Carnival Breeze and Carnival Dream.

The three ships weigh 128 gross tonnes and carry 3,652 passengers.

What’s onboard?

The three ships have the widest variety of activities and dining in the entire Carnival fleet.

Activities onboard include the Carnival Waterworks – a water park that features four slides including the Twister Waterslide, the Speedway Splash, the DrainPipe and the PowerDrencher.

9. MSC Splendida/MSC Fantasia

MSC spent almost $550 million on the world’s tenth largest ships.

The two Fantasy-class vessels – MSC Splendida and MSC Fantasia – are 333.30 metres long, have a gross tonnage of 137.9 and carry 3,900-passengers.

What’s onboard?

Across 18 decks, both ships have 1,637 cabins, four swimming pools, a squash court, a Formula 1 racing car simulator, a Swarovski crystal incrusted staircase in the reception, 18 bars and lounges, 12 whirlpool baths, a sports bar with a bowling alley, kids clubs and a spa.

8. Royal Caribbean’s Voyager Class ships

Royal Caribbean is known for its world class big ships, so it comes as no surprise the line’s entire Voyager-class fleet come in at ninth largest in the world.

The fleet is made up of Voyager of the Seas, Navigator of the Seas, Adventure of the Seas, Explorer of the Seas and Mariner of the Seas.

They weigh in at 138 tonnes and carry 3,114 passengers in 1,557 cabins over 15 decks.

What’s onboard?

The ships have many Royal Caribbean signature features, including an ice-skating rink, rock climbing wall and a four-deck high Royal Promenade.

7. MSC Divina/MSC Preziosa

 MSC Cruises’ MSC Divina and MSC Preziosa entered service in 2012 and 2013 and cost the line almost $760 million to build each.

The ships have a gross tonnage of 139 and carry a maximum of 3,959 passengers.

What’s onboard?

Catering for people of all ages, both ships are equipped with a 4D theatre, a Formula 1 racing car simulator, three pools and 13 hot tubs.

The ship is also fitted with a two-deck-high theatre style show lounge, a nightclub and several bars and restaurants.

Another notable cruise ship from MSC Cruises is the MSC Meraviglia. 

6. Royal Princess/Regal Princess

Princess Cruises’ two newest and most royal ships fit snugly among the largest ships at number six.

Royal Princess and Regal Princess were launched in 2013 and 2014, weighing 141 tonnes.

The sister ships have 17 passenger decks and carry a maximum of 3,560 passengers.

What’s onboard?

Both ships feature the unique SeaWalk – a top-deck glass-floor enclosed walkway that extends nine metres off the vessel’s edge. It gives the impression of walking on water.

5. Norwegian Breakaway/Norwegian Getaway

Norwegian Getaway may barely be six months old, but she and her older sister Norwegian Breakaway managed to secure the fifth spot in the list.

Making up Norwegian Cruise Lines’ new Breakaway-class of ships, the two vessels weigh 146,600 tonnes and carry 3,969 passengers.

What’s onboard?

You name it and these two ships likely have it.

For the younger cruisers there is the Aqua Park with five water slides, a rock climbing wall and rappelling wall.

4. Queen Mary 2

She’s the world’s largest ocean liner and she’s also the world’s fourth largest cruise ship.

Despite her size – 148 gross tonnes and 345 metres long – Queen Mary 2’s capacity is intimate compared to other ships at only 2,620-passengers.

What’s onboard?

Queen Mary 2 is equipped with five swimming pools and eight hot tubs.

During the day, guests will enjoy the paddle tennis court, giant chessboard and golf simulator as well as the several bars and restaurants.

3. Royal Caribbean’s Freedom-class vessels

Royal Caribbean makes the list again for its Freedom-class vessels, which weigh 154,407 tonnes each.

Independence of the Seas, Liberty of the Seas and Freedom of the Seas were once crowned the world’s largest cruise ships when they were launched between 2006 to 2008.

Since, they’ve been pushed down to third place as demand for more mass-market ships grow.

The three ships carry 4,375-passengers over 15 passenger decks.

What’s onboard?

The ship’s are fitted with everything you’d expect to see onboard a Royal Caribbean ship, including two swimming pools, six hot tubs, 16 bars and lounges, an ice-skating rink, basketball court, rock-climbing wall, a spa and a full-sized boxing ring.

2. Norwegian Epic

If Norwegian Cruise Lines had launched Norwegian Epic seven months earlier, she would have held the title for world’s largest cruise ship for at least a month.

But as the world’s second largest cruise ship, Norwegian Epic weighs 155,873 gross tonnes and carries 4,100-passengers.

What’s onboard?

The ship has a rock-climbing wall, an Aqua Park with three major water slides, a movie theatre, an adults only area, a members-only POSH Beach Club, an Ice Bar made up entirely of ice, five swimming pools and nine hot tubs.

1. Allure of the Seas/Oasis of the Seas

Royal Caribbean takes out the number one spot for the 10 largest ships in the world with its Oasis-class vessels, Allure of the Seas and Oasis of the Seas.

Oasis of the Seas came first in 2009 and was soon followed by her sister ship in 2010.

A third Oasis-class vessel is currently in the works and expects to launch in 2016 and Royal Caribbean has plans to launch a fourth to be ready by 2018.

What’s the appeal of the Oasis-class ships.

They are each 362 metres long – that’s almost three times the length of one of the Brazilian soccer fields being used for the 2014 FIFA World Cup.

The ships weigh 225,282 gross tonnes and carry 6,318 passengers, which is almost eight times the population of Vatican City.

What’s onboard?

The two ships are essentially floating cities and have almost everything onboard.

Public spaces include the Central Park – a garden lined with shops and restaurants; the Boardwalk; Royal Promenade; the Sports Zone; and three pools.

Other notable Royal Caribbean Cruise includes Harmony of the Seas and Symphony of the Seas. The former is popular for its zip line. 

Fun Fact: The no.1 spot will be soon taken over by another gem from Royal Caribbean Cruise – Wonder of the Seas. 

The cruise ship is still under construction and measures 362 meter long and 64 meters wide. It can accommodate 6,988 guests and 2,300 crew members. 

Promising a bigger adventure, the super ship has a redesigned pool deck with eight neighbourhoods and an all-new Playscape – an underwater world studded with slides, games, and climbing walls. 

The Wonder of the Seas is set to sail in March 2022.