There are moments that mark the beginning of a new course. The launch of the first Sirena Superyachts 42M is one of them: the new flagship touched the water on 22 July 2026, becoming the largest yacht ever built by Sirena Marine. A milestone that marks a new phase in the shipyard’s evolution and confirms its entry into the world of steel-and-aluminium superyachts.
At 42 metres in length and with an interior volume of approximately 434 GT, the Sirena 42M has been developed to combine impressive cruising capability, long-term comfort and a constant connection with the sea. Its steel fast-displacement hull, paired with an aluminium superstructure, is designed to deliver efficiency and range on extended passages.
The exterior lines and layout are by Italian designer Luca Vallebona, while the interiors have been created by Hot Lab, part of The Viken Group. Naval architecture is by Van Oossanen Naval Architects, with detailed engineering by Eureka Yachts. This international collaboration has resulted in a contemporary, distinctive and highly customisable yacht.
One of the project’s most distinctive features is the owner’s suite, directly connected to a private forward patio: a secluded, light-filled space that can accommodate a pergola, lounge area and hot tub. With the large glass doors open, interior and exterior merge into a single environment, offering the owner a level of privacy rarely found in the semi-custom segment.
At the stern, the beach club unfolds over multiple levels around a central pool. Fold-down bulwarks increase the available space and bring guests even closer to the water, while the flybridge offers sunbathing areas, social spaces and dedicated zones for outdoor living. The interiors, designed to accommodate up to ten guests in five cabins, combine natural woods, soft fabrics, bright surfaces and organic geometries.
Already sold ahead of its international presentation, the first Sirena Superyachts 42M will make its public debut at the Monaco Yacht Show, taking place from 23 to 26 September 2026. A result that confirms market interest in a new generation of superyachts: refined without being ostentatious, technologically advanced and designed to be truly lived in.
With the Sirena 42M, the journey is not simply a passage between two destinations, but a seamless experience of architecture, comfort and the sea.
Discover the Sirena Superyachts range and contact GPY Marine for more information.
