Ocean Independence has announced the addition of Thanuja to its fleet after an extensive four-year refit. This 50-meter-long yacht, which began life as Grayzone, has undergone such a dramatic transformation that it is being hailed as the equivalent of a brand-new build. The refurbishment, carried out by a collaborative effort between several Hamburg-based firms, has prepared Thanuja for her debut charter season.



Originally built by Concept Marine in Turkey back in 2011, Grayzone arrived at Serenity Shipyard in Antalya in 2021 for what was intended to be a simple refit. However, the scope quickly expanded into a total overhaul. The yacht was dismantled down to its bare metal structure, and major changes followed. The stern and aft decks were extended, increasing the overall length from 43 to 50 meters, while the flybridge received substantial upgrades.

As a result of these modifications, the vessel's gross tonnage (GT) grew significantly—from 380 GT to 463 GT. These alterations were so profound that the classification society deemed them comparable to constructing a new yacht altogether. Renamed Thanuja, the yacht emerged from the shipyard with a fresh identity and vastly improved capabilities.


Main saloon 

At the heart of this ambitious project stood the Hamburg-based yacht design and engineering firm iYacht GmbH. They developed the initial concept, handled the exterior design, and managed the naval architecture. Working within the constraints of the existing hull and prior design elements, they successfully adapted the vessel to meet the new owner's expectations while retaining some of its original character.

While the original plan called for minor cosmetic updates to the interiors, the project evolved into a comprehensive redesign under the guidance of Katharina Raczek Design, another Hamburg-based firm. Their team crafted a luxurious living environment capable of hosting up to ten guests across five elegant staterooms. Additionally, the crew quarters were enlarged to accommodate a staff of nine. Every aspect of the interior – from bespoke furniture and lighting to detailed decorations –was meticulously curated by Katharina Raczek Design.


Sky lounge

Stefan Zucker, founder of the consultancy Zucker & Partner, played a pivotal role in managing the project. His expertise ensured smooth coordination among various parties involved, resulting in a cohesive outcome. Furthermore, the owner contributed his own experienced project manager to ensure that every detail aligned with the vision.

Each deck aboard Thanuja offers unique spaces tailored for different moods and activities. Guests can relax in the shaded sanctuary of the main deck aft or enjoy panoramic views from the expansive upper deck, which boasts plush sofas, an al fresco dining area, and a barbecue setup. The sundeck invites guests to unwind with its hot tub, lounge chairs, and well-stocked bar, making it perfect for both daytime leisure and evening entertainment.


Owner cabin 

In addition to the aesthetic improvements, Thanuja underwent a thorough technical revamp. All electrical systems, wiring, and pipework were replaced, and the engine room was upgraded with state-of-the-art components. Powered by twin MAN engines equipped with SCR units, the yacht meets the strictest environmental standards set by IMO Tier III regulations. Advanced bow and stern thrusters further enhance her maneuverability.

With her combination of luxury, performance, and versatility, Thanuja is primed for success in the competitive charter market. Adelheid Chirco, Central Agent at Ocean Independence, expressed confidence in the yacht's appeal, highlighting its ideal size and stunning amenities. Starting at EUR210,000 per week, Thanuja will be available for charters in the Mediterranean, promising unforgettable experiences for her future guests.

Credits: Ocean Independence

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