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Request Pre-Charter InspectionAbout SONISHI
SONISHI is a 40.05-metre displacement motor yacht built by Sunseeker in 2019, registered in the Cayman Islands. As the flagship 131 Yacht model from the Poole-based builder, she represents Sunseeker's most ambitious expression of GRP construction at displacement scale, with both exterior and interior design handled entirely in-house.
She is best suited to groups of up to 10 guests who want a polished, contemporary Mediterranean charter experience with an active water programme. Five guest cabins and a professional crew of eight deliver a notably high service ratio for her size, and her charter footprint is focused on the western and central Mediterranean — the French Riviera, Corsica, Sardinia, the Balearics, Ibiza, Monaco, and Italy. She is less suited to guests seeking broad ocean-crossing capability or a particularly large group configuration, given her guest capacity and regional focus.
SONISHI carries at-anchor and underway stabilisers alongside a deck jacuzzi and sun deck, which positions her as a genuinely comfortable platform for extended anchor stays in sheltered bays. Her GRP construction allows for refined hull lines and the clean visual profile associated with Sunseeker's larger builds, while her 22-knot maximum speed provides passage flexibility that displacement steel yachts at this size typically cannot match.
The water sports inventory is extensive for a vessel of 40 metres: twin Seabobs, twin SeaDoo RXP-X 300 jet-skis, paddleboards, kayaks, water-skis, a wakeboard, towable toys, and snorkelling and fishing equipment. This range supports varied guest preferences without requiring advance planning. Those seeking a vessel with wider transatlantic range or a more traditional build character will find other options more appropriate, but for a capable, well-crewed yacht charter in the Mediterranean, SONISHI is a well-rounded proposition.
The provisional rating is based on available public data, reflecting acceptable standards across safety documentation, maintenance records, and operational protocols. As an independent authority, RightYacht provides owners and charterers with transparent, third-party evaluation — helping inform decisions beyond marketing materials alone.
Key Specifications
Build & Design
Propulsion
Amenities
Water Toys & Equipment
Tenders
About This Score
This is a provisional score based on publicly available data only. Unlike verified yachts, this listing lacks:
- Independent on-board inspection
- Crew qualification verification
- Maintenance record audit
- Safety equipment inspection
The actual safety profile may differ significantly.
Provisional scores are calculated from eight factors: vessel age, refit recency, classification society, flag state, crew-to-guest ratio, builder reputation, vessel size, and charter region coverage. All provisional scores are capped at 75/100. Learn how scores work →
Scoring model v5 · Last scored Feb 2026
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