Golden Yachts unveiled O’Ceanis in October 2025. She is an 85-metre motor yacht, already in build at the group’s own yard at Perama, on the western edge of Piraeus, and she will launch in 2027. Her hull is steel and aluminium, 13.2 metres in the beam, with a draught of 3.45 metres (the depth of water she needs to float). Studio Vafiadis drew her exterior, her guest suites and her bridge, and Massari Design of Fano designed her interiors. The figure that matters most is her propulsion. She is diesel-electric, with a maximum speed of 19.5 knots and a cruising speed of 16, and she can run silently for 4 hours by day or 8 by night.
Aboard, on paper
The owner’s suite has a private balcony of its own. There are also two VIP suites and double and twin guest cabins. A swimming pool sits on the main deck, a lift serves every level, and the bow carries a fully certified helipad. The upper deck has a bar carved from rock, and the sundeck has a wellness centre with a massage room and a gym. At the waterline, the beach club opens onto a swim platform with a firepit and a hammock. The garage holds a 9.8-metre limousine tender and a second, electric boat, the Frauscher x Porsche 850 Fantom Air.
Massari Design’s drawings keep to a dark, considered palette. They show marble floors, modern art hung with care, and a curving staircase clad in dark wood, made to be looked at as much as climbed. The Fano studio used the same approach on the yard’s 60-metre O’Madeleine, delivered in 2025, and O’Ceanis carries it at a larger scale.
The case for silence
Diesel-electric propulsion is the real news behind the specification sheet. Generators make the power and motors turn the shafts. This frees the engines from the rhythm of the propellers and takes the vibration out of the hull. The stated results are lower carbon dioxide emissions and the silent modes: 4 hours in daylight and 8 through the night.
Eight hours is a whole night at anchor in a Cycladic bay without the hum of machinery. On a yacht of this size that sound is so constant that most owners stop hearing it, and notice it only when it is gone. She is intended for Greek waters, where the pleasure of a yacht is very often stillness, so this is the part of the specification that says the most.
The yard’s earlier yachts
The largest yacht launched at Perama is still the 95-metre O’Pari of 2020. Below her come the 88-metre Project X of 2022 and the 85-metre O’Ptasia of 2018. The fleet also includes the 77.7-metre O’Rea from 2023 and the 60-metre O’Madeleine from 2025. With O’Ceanis, a Greek yard is building at the top of the market often enough that length is no longer the story.
Studio Vafiadis has drawn three earlier yachts for Golden Yachts: O’Ptasia, O’Pari and O’Madeleine. That continuity gives the yard a house style of its own. A builder and a designer on their fourth yacht together also have a long working relationship to draw on.
What she shows about Greek yacht building
Greece has long been a shipping country, but that strength has not carried over easily into building yachts at the very top of the market. That has been changing at Perama for some years, out of sight of most people who come to Athens for the city. Perama is a working shore of slipways and cranes on the far side of the port, and the yard has grown into work of this size without announcing it.
In 2027 a yacht of this size will come off a slipway half an hour from the centre of Athens. She will be able to lie at anchor without a sound, which matters to a client who sees the Cyclades from the water.
Who is this for
O’Ceanis suits an owner who plans long Greek summers at anchor and wants room for guests as well as quiet. In the renderings, her white hull steps up over four deck levels. The main saloon has a pale marble floor, cream sofas facing each other across low stone tables, and a large abstract panel on the far wall. A bright lounge holds a grand piano, a bar and a curved cream sofa with green cushions, behind full-height glass on three sides that opens to the sea.
