Sinot Fusion: The 118-Metre Yacht That Turns Deck Space Into a New World

28 October 2026 ·3 min read

By Patrice Meignan — TRANSMISSION Magazine

At 118 metres, a yacht is already a world apart. Sinot’s FUSION asks what happens when its decks are treated not as the intervals between rooms, but as the main event. The studio describes 3,340 m² of exterior deck space: a remarkable figure, and the starting point for a design that places culture, wellbeing, sport and exploration under one roof — or, more accurately, across several open horizons.

Sinot FUSION 118-metre yacht concept with aft access to the sea — FUSION’s central hull opens aft toward a lower-deck beach and direct water access. Image: © Sinot Yacht Architecture & Design.

Sinot FUSION at a glance

Project: FUSION, a superyacht design concept by Sinot Yacht Architecture & Design
Length and beam: 118 metres by 30 metres
Exterior deck area: 3,340 m², according to Sinot
Design status: concept; Sinot’s project page does not identify a build contract, shipyard, commissioning owner or delivery date

Those figures need a little context. The 3,340 m² refers to exterior decks, not interior floor area. Sinot allocates around 2,200 m² to the Upper Deck outside, including a 970 m² pool terrace and a 770 m² forward “Playdeck”. A separate 834 m² Main Deck area is devoted to tenders, craft and vehicles. The idea is less about one oversized sunpad than about giving different kinds of days their own terrain.

A deck plan that behaves like a destination

At the stern, the centre hull opens to reveal a sheltered beach at lower-deck level, with direct access to the water for diving and water toys. Forward, the Playdeck can be imagined as a full-size tennis court or an open-air venue for sport, music and art when it is not being used for helicopter or VTOL operations. These are design intentions in Sinot’s concept, rather than proof of a completed yacht or a confirmed operating plan.

Sinot FUSION concept yacht upper-deck dining lounge and glass-bottom pool — The 8.2 × 12.5-metre pool is designed with a glass bottom above the tender and vehicle deck. Image: © Sinot Yacht Architecture & Design.

The pool makes that vertical relationship unusually literal. At 8.2 by 12.5 metres, its glass bottom looks down toward the craft deck; from below, Sinot says, the water becomes a luminous ceiling. It is a theatrical gesture, certainly, but also a compact expression of the project’s larger premise: movement, leisure and display can occupy the same architectural section.

Wellbeing and spectacle, held in balance

FUSION pairs the social scale of its pool terrace and dining lounge with a gym and health centre, treatment rooms and a 300 m² spa. A monumental staircase lobby links three upper decks around an art installation of illuminated glass and natural stone. Those details suggest that Sinot is not simply adding attractions; it is using circulation, sightlines and material contrasts to make the yacht feel like a sequence of distinct places.

Illuminated glass and stone staircase lobby aboard the Sinot FUSION yacht concept — The central staircase is conceived as the architectural heart of FUSION. Image: © Sinot Yacht Architecture & Design.

That ambition is where the name FUSION becomes more than a label. Sinot combines a culture-and-wellbeing programme with one built around sport and exploration, while the project’s naval architecture is developed in close cooperation with Azure Yacht Design & Naval Architecture. In my view, the most interesting question is not whether a yacht can fit a tennis court, spa and submersibles. It is whether all that variety can still feel coherent, intimate and connected to the sea.

Can a superyacht become a world of its own?

FUSION answers with a compelling design proposition: expand the idea of onboard life until the yacht feels less like a grand object to admire and more like a place with its own geography. But at this scale, the quality of the experience would depend on how the architecture is eventually realised — and on the engineering, operation and environmental choices behind it. The official project page presents FUSION as a concept, not as a yacht confirmed for construction.

For now, its strongest achievement is conceptual. Sinot takes deck area — usually a specification — and turns it into a question about how people might inhabit the sea. That is a more interesting measure of scale than length alone.