Symphony of the Seas: World’s largest cruise ship sets sail

After three years of construction, the world’s largest cruise ship just set sail from Barcelona, Spain, on its inaugural voyage to destinations around the Mediterranean.

But the ship’s record-breaking size isn’t its only claim to fame.

The Symphony of the Seas is home to the tallest waterslide at sea, the ocean’s fastest Internet and more works of art than the Louvre has paintings.

“The most surprising and memorable thing for me was that first sight of the ship – seeing how big and immense it is,” Balwin Yeung, Royal Caribbean’s director of sales and marketing in Hong Kong, tells CNN Travel.

“You can actually see it the moment you almost step out of the airport in Barcelona, since the port is just 10 to 15 minutes away. It makes a huge first impression.”

By the numbers

Ultimate family adventure: The world's largest cruise ship just set sail from Barcelona, Spain, on its inaugural voyage. But the ship's record-breaking size isn't the only thing that the Symphony of the Seas has going for it.

The big time: After 36 months of construction at the STX France shipyard in Saint-Nazaire, France, the Royal Caribbean ship aims to deliver an over-the-top family adventure, fueled by a long list of superlatives. Among its many claims to fame? The tallest slide at sea, the ocean's fastest Internet, the most restaurants on any cruise ship, and more works of art than the Louvre has paintings.

Superlative ship: As the world's largest cruiseliner by volume, the Symphony of the Seas stretches 1,188 feet long with 22 restaurants, 24 pools and 2,759 cabins. At capacity, the ship can host about 6,680 guests -- plus 2,200-some crew members for a total of nearly 9,000 people.

Family time: Among the accommodations, the most over-the-top is the "Ultimate Family Suite." Decked out in bold colors, these two-level suites include a host of unusual amenities -- think an in-room slide, private cinema, ping pong table and a floor-to-ceiling LEGO wall. Meanwhile, the adults in the eight-person duplex will appreciate the private balcony and whirlpool.

Suite stuff: Should you need an extra hand, a butler -- dubbed a Royal Genie -- will look after the entire family.

Ultimate family adventure: When it comes to entertainment, the cruise ship provides an ambitious lineup of performances and thrills.

Rock out: On the vast deck, there's glow-in-the-dark laser tag, an "Escape the Rubicon" puzzle in a custom-built escape room, a rock climbing wall, FlowRider surf simulators, a nine-deck-high zip line and "Splashaway Bay" kids' water park.

Slip 'n' slide: But the jewel in the crown is the spiraling "Ultimate Abyss" slide -- the tallest on any cruise ship to date. With a lofty perch at 150 feet above sea level and 10-story drop, it promises an adrenalin hit.

Adrenaline rush: Taller than the White House, the 92-foot-tall slide swirls at a 27-degree incline, which takes about 13.14 seconds from top to bottom.

Central Park: Should you need a break from the non-stop action, "neighborhoods" like Central Park provide a quiet corner. More than 20,700 tropical plants line the leafy walkways, where little restaurants and wine bars serve as adults-only oases.

World's largest cruise ship sets sail

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As the world’s largest cruiseliner by volume, Symphony of the Seas stretches 1,188 feet long and is filled with 22 restaurants, 24 pools and 2,759 cabins.

At capacity, the ship can host about 6,680 guests – plus 2,200-some crew members for a total of nearly 9,000 people.

“Eight out of 10 of the largest ships in the world were built by Royal Caribbean, but this one really pushes the envelope,” says Yeung.

“At the same time, you don’t really feel crowded because there are 18 decks on the ship. It’s like a building, right? There are 24 elevators and seven neighborhoods. Each neighborhood has its own personality, so it tends to naturally segregate the crowds.”

“Neighborhoods” such as the adults-only Solarium lounge or leafy Central Park aim to provide a refuge, whereas a dedicated Splashaway Bay water park is packed with families.

“Central Park is really peaceful, with more than 20,000 tropical plants and an alfresco wine bar,” says Yeung.

“Others will like the Boardwalk, which is much more outdoorsy and fun for families with a carousel.”

Slip ‘n’ slide

The ship is home to multiple slides, including the record-setting "Ultimate Abyss"

For daily dopamine hits, the new cruise ship provides an ambitious lineup of performances and thrills.

Peppered around the vast deck, there’s a glow-in-the-dark laser tag, an “Escape the Rubicon” puzzle in a custom-built escape room, rock climbing wall, surf simulators and a nine-deck-high zip line.

But the jewel in the crown is the spiraling “Ultimate Abyss” slide – the tallest on any cruise ship to date, at 150 feet above sea level.

Featuring a 10-story drop, the serpentine slide winds toward the deck below at a steep 27-degree incline, which takes about 13.14 seconds from top to bottom to descend.

Also on board, dance and musical enthusiasts can settle in to watch boundary-pushing acrobatics and high dives at the AquaTheatre or head to the Royal Theatre to experience an upbeat rendition of “Hairspray.”

“Actually my favorite part of the experience was the shows,” says Yeung. “It’s beautiful to see the outdoor dives at the back of the ship, with all the lighting and the music and professional acrobatics.”

A family affair

There's a slide inside the "Ultimate Family Suite."

When it comes to accommodations, the most over-the-top is the “Ultimate Family Suite.”

Decked out in bold colors, these two-level suites include a host of unusual amenities – think an in-room slide, private cinema, ping pong table and floor-to-ceiling LEGO wall.

Meanwhile, the adults in the eight-person duplex will gravitate toward the private balcony and whirlpool.

Should travelers need an extra hand, a butler – dubbed a Royal Genie – will look after the entire family, while an “Instagrammer-in-Chief” is on hand to ensure guests snap shareable pictures.

A new route

The ship will sail around the Mediterranean all summer.

This year, the ship will be traversing the Mediterranean with voyages to Palma de Mallorca, Spain and an Italian sojourn to Florence, Pisa, Rome and Naples.

Come autumn, Symphony of the Seas will move its home base to Miami, Florida, and launch a series of Caribbean cruises.

On the itinerary? Stops in Bora Bora or perhaps a “Perfect Day at CocoCay” – a private island owned by Royal Caribbean that’s home to the tallest waterslide in North America, hot air balloon rides and the largest freshwater pool in the Caribbean.

Of course, massive cruise ships often draw ire from conservationists due to their impact on small communities and less developed destinations.

Yeung says the mega ship will stick to well-oiled tourist destinations, where there’s an existing infrastructure to handle an influx of travelers.

“This summer, the Symphony is sailing one of the most popular and common Mediterranean itineraries, stopping in established tourist destinations such as Rome and Naples,” says Yeung.

“These places are very experienced with tourism and hosting guests from ships. We’re not cruising to any small villages.”