Project Mille, Realized: Sailing the Ships That Changed How Cruising Feels

If You’ve Ever Wondered Why Some New Ships Feel a Little Different Than Others You’ve Cruised…

When Fincantieri quietly unveiled Project Mille at Cruise Shipping Miami back in 2013, it read like a theoretical exercise — a shipbuilder’s white paper about weight distribution, center of gravity, and superstructure geometry. What it actually was, in hindsight, was a blueprint for a fundamentally different onboard experience. Having now sailed two of the most direct expressions of that concept — Norwegian Cruise Line’s Norwegian Luna and Virgin Voyages’ Scarlet Lady — I can tell you that the philosophy translates from the drafting table to the deck in ways that are immediately, physically felt.

From there, the design philosophy cascades outward. By relocating the heaviest machinery and balancing weight more precisely, architects could narrow the superstructure while widening the hull beneath it. That combination opens up exterior deck space at lower levels, closer to the waterline, in a way previous generations of large ships simply couldn’t achieve. The result is wide exterior promenades that wrap around the ship and genuinely connect passengers to the ocean. On both Luna and Scarlet Lady, these lower promenades feel expansive in a way that the upper-deck walking tracks on ships like Norwegian’s Breakaway class or Carnival’s Vista class don’t. Because the superstructure is narrower, the hull extends further on either side beneath it, creating outdoor deck space that is wide, relatively sheltered from wind, and set low enough that the sea feels close.

What passengers may also notice is what’s missing at the top. The sprawling tiered sun decks that cascade down around a massive main pool — a signature feature of ships like those in the Breakaway or Vista classes — are largely absent on Mille-derived ships. Luna has no such arrangement at all. Scarlet Lady has one, but it’s a reduced version of what cruisers might be accustomed to. The main pools themselves are smaller than what you’d find on comparable tonnage from those earlier classes. This is by design. Moving pool areas and spa facilities lower in the ship pulls weight down and out of the superstructure, which in turn allows for an additional deck of balcony cabins higher up — higher-revenue spaces that more than offset what was given up topside.

It’s worth putting this in context against the ships Project Mille was implicitly responding to. The Breakaway and Getaway, along with Carnival’s Vista class, represent a previous generation of thinking where the priority was maximizing interior volume and amenity decks high in the ship. Those ships are extremely capable, but their outdoor promenades tend to feel like afterthoughts — narrow walkways squeezed around the perimeter of a superstructure built to maximize interior square footage. Mille’s approach inverts that priority: the exterior experience is a design goal from the start, not a leftover.

What’s also notable, having sailed both ships, is how consistent this feeling is across two very different cruise lines. Virgin Voyages and Norwegian Cruise Line share almost nothing in terms of brand identity, passenger demographic, or onboard culture. Yet both Scarlet Lady and Luna have that same low-promenade, close-to-the-water quality that is unmistakably Mille in origin. It’s a reminder that the hull and superstructure geometry Fincantieri developed is a platform, and multiple lines have built very different products on top of it.

When the original Project Mille coverage ran, the ships were still theoretical. MSC’s Seaside class was the first real-world test and showed the concept worked at scale. The Lady class and NCL’s Leonardo class ships — of which Luna is among the latest — have now accumulated enough passenger experience to say definitively: the promenade works, the low-slung exterior experience is real, and it represents a meaningful shift in how a large modern cruise ship actually feels to walk. Fincantieri’s 2013 proposal wasn’t just about building a more efficient ship. It was about building a better one.