Sinot’s 118-Metre Fusion Yacht Concept Has Room for a Tennis Court—and a Very Different Life at Sea

Some yacht concepts invite you to imagine a better sunlounger. Sinot’s latest asks you to reconsider the entire day: a tennis match before lunch, an afternoon in the spa and enough space to host friends without surrendering every corner of the boat to the party.
Fusion is the Dutch studio’s new 118-metre trimaran concept, and the number that deserves as much attention as its length is its 30-metre width. Three hulls give the proposal a broad footprint, opening up possibilities that feel closer to planning a private resort than rearranging a conventional yacht.
It remains a concept. The pleasure, for now, lies in seeing what a designer does when given such an unusually generous canvas.

Why Fusion’s three hulls matter
Sinot’s published design proposes 3,340 square metres of exterior deck space. Its layout separates places to retreat from places to gather, with an owner’s residence and eight further guest rooms, each of the latter opening onto a private loggia.
The interesting idea is the distribution of that space. A large yacht can still feel socially demanding if every route leads back to the same lounge. Here, the proposal allows for different kinds of company—and different degrees of escape.
For an owner travelling with several generations, that could be the real luxury: the freedom to spend a morning differently, then reconvene for dinner. Square metres become meaningful when they make a day less negotiated.
A tennis court where you might expect another terrace
The forward Playdeck is designed to accommodate a full-size tennis court and other activities, with alternative uses including events and helicopter operations. Elsewhere, the upper deck combines an 18-seat dining table with a glass-bottomed swimming pool; a separate spa occupies 300 square metres.
Those are attention-grabbing facilities. Yet the more persuasive design question is whether they would encourage people to linger on board. A court suggests routine as much as spectacle: something to do between destinations, rather than another object to photograph.
The same goes for the pool. Put swimming beside dining and outdoor seating and the deck has the ingredients of a whole afternoon, without requiring everyone to share the same activity.
The quieter rooms deserve a look
Sinot specifies travertine and natural woods in the owner’s residence, alongside a private 100-square-metre terrace. The guest interiors bring together stone, smoked glass, timber and woven textiles.
That material mix gives the project a residential direction. We would be just as interested in how these spaces handle a rainy morning with a book as a glamorous evening at anchor. A yacht intended for extended stays has to be convincing when nobody is entertaining.
The terraces are especially appealing in that respect. Private outdoor space changes the character of a bedroom, making it somewhere to spend time rather than simply return to at night.
A concept, not a yacht you can charter
Coverage of Fusion’s unveiling describes it as Sinot’s bid for the largest full-length trimaran superyacht concept. That carefully qualified claim should not be confused with a record for an existing vessel.
There is no maiden voyage to book in the material reviewed for this feature. Proposed facilities, layouts and dimensions belong to the design stage.
Still, the project is worth following for more than its scale. Fusion makes a compelling case for width as a source of comfort, privacy and choice. The tennis court will attract the headlines. The chance to find a quiet corner while everyone else plays may prove the more desirable feature.



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