I was the first onboard Norwegian’s brand new £636million ship with ‘slidecoasters’, infinity pools and splash parks

“OH, the kids would just love that,” I gasp as I watch the Aqua Slidecoaster rocket up and around the top deck of the new Norwegian Luna.

Following its progress around the pinnacle of this sparkling new cruise ship, I spot ten-deck slide The Drop, the multi-level tangle of Moon Climb’s obstacle nets, high-tech Glow Court with its interactive LED floor for virtual sporting challenges and the wacky technicolour holes of the Tee Time mini golf course.

Four more must-dos for any thrill-seeking kiddo.

Alongside indoor and outdoor arcades with carnival games, pools and splash parks and, of course, kids’ clubs, this ship is a paradise for little ones.

But the joy of this 3,565 passenger liner is the way it can keep all ages happy.

I was the first UK journalist to get a sneak peek of the ship last week as it made its way from Italy across to its new home port in Miami.

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And while the kids will be delighted, there’s so much more for all ages onboard.

Luna has a shimmering, celestial theme to its decor ­— think modern luxury with an almost art deco feel, opulent fabrics and glistening metals that are understated and ooze sophisticated calm.

For a little more luxury, at the rear of the ship the Vibe Beach Club with its cushioned loungers, comfy cabanas and hot tubs is an adults-only zone.

It may come at an extra cost but you are guaranteed your own lounger and there are no splashing kids to avoid.

And what mum wouldn’t want to enjoy a pamper in the vast Mandara spa with its indoor pools sitting beneath a sparkling two-deck high wall of waterfalls.

With multiple saunas, steam, ice and salt rooms, it’s the epitome of zen.

Treatment prices are on the steep side, though.

While the main pool has even more loungers than its Prima class sister ships, one of the features I loved about this ship’s design is the generously wide spaces on deck eight where some restaurants and bars spill outside with al-fresco tables and there’s still plenty of space for loungers, infinity pools and in-pool layouts.

Dubbed the Ocean Boulevard, this 46,000sq ft walkway wraps around the entire ship and also features a vertigo-inducing glass bridge and Luna sculpture that comes with a button you can press for a personal video.

Look up at the camera and within seconds it will take a video of you, panning out so you can take centre stage.

A download of the resulting video costs £3.75 — great for adding to your social media!

Talking of restaurants, the choice is dizzying with 17 dining options and 18 bars and lounges.

Norwegian were among the first to challenge the idea that cruise ship dining had to be formal and at set times.

The latest ship shows just how far they have taken their freestyle concept.

There are five venues included in your fare.

I loved the Indulge food hall where you can grab a tablet to make your choice from nine different stations featuring tapas and noodles to curries and barbecue.

Tap away and dishes are then delivered to your table.

Also stunning was Hudson’s – one of the two very chic main dining rooms with floor-to-ceiling sloping windows, offering fabulous views of the ocean.

For quick bites, there’s the Surfside Bar and Grill, The Local serving classic pub fare 24/7 and on-deck ice cream stands with soft whip treats.

But the ship comes into its own with the choice of speciality restaurants.

I sampled the freshest, tastiest sushi at Nama and a sublime filet mignon at Mediterranean-inspired Palomar.

Also new on Luna is authentic Thai cuisine at Sukothai as well as a vast teppanyaki restaurant, Nuki.

These do come at an extra cost, from £38pp for the sushi to £45pp for Palomar and Nuki.

When it comes to a tipple, there’s so much choice, but my favourites were the outdoor Soleil Bar for sunset sips and the Metropolitan for evening cocktails.

And when the sun goes down, there’s plenty of entertainment to keep the grown-ups happy with new shows Elton: A Celebration of Elton John and Revolution: A Celebration of Prince.

But the smaller venues are also sure to be popular with a new Eagles tribute in Syd Norman’s Pour House, an intimate rock-club venue inspired by the Los Angeles Sunset Strip rock scene.

And for a risque pop-circus song and dance experience, the new adults-only LunaTique show comes with an extra charge of £34, but does come with four (very sweet) themed cocktails.

At the end of the night, I was very happy to head back to my spacious balcony cabin, which has a huge bed plus a sofa bed and roomy bathroom with a rainfall shower.

Homeporting in Miami, the ship will offer three and four-day Bahamas voyages as well as seven-night Caribbean itineraries including calls at the Dominican Republic, Cozumel and St Thomas as well as the cruise line’s private island Great Stirrup Cay in the Bahamas.