Sirena Marine has entered the superyacht market with the debut of the Sirena 42M at the 2026 Monaco Yacht Show. The first model from the Turkish builder’s Sirena Superyachts division, the 138-foot yacht launches a new range that will eventually include 35- and 50-meter models.
Milan-based designer Luca Vallebona penned the exterior and developed the yacht’s layout, while Hot Lab, part of the Viken Group, handled the interiors. Van Oossanen Naval Architects developed the hull form, drawing on its experience with efficient, stable fast-displacement designs.
One of the 42M’s defining features is a private owner’s patio on the foredeck. Open to the sky and framed by glass, the space creates an outdoor retreat directly connected to the full-beam owner’s stateroom through large sliding glass doors. Freestanding armchairs, a pergola and living plants give the area the feel of a secluded garden. The owner’s suite also includes a dedicated office, dressing room and bathroom.
Across four decks, the 42M emphasizes connections between interior and exterior spaces. A 213-square-foot beach club, approximately 764 square feet, extends the yacht’s waterside living area, with fold-down wings that expand the space when at anchor.
