#11 OK - Top Largest Yachts in the World

11. OK | 146m

Built in 1982, Japan

This unusual vessel spent decades plying the seas as a float-on yacht carrier for DYT Yacht Transport with the unglamorous moniker Super Servant 3 – and it is this carrying ability that caught the owner’s eye.

40 years after its original launch by Japan’s Oshima Shipbuilding, the yacht emerged from a root-and-branch refit at Karmarine in Turkey. The exterior has been smartened up, with a new matt-black paint job, gold-tinted glazing, teak decking at the bow, stern and sides and an expanse of artificial grass on the submersible aft deck – an idea of the owner’s, to enliven the guest cabins’ view. There are reports that this space doubles as a tennis court and, at 32 meters by 100 meters, there would certainly be the room for it.

With a strengthened hull, the boat’s original role as a yacht carrier has been enhanced. Pumping ballast into tanks under the aft deck allows the platform to lower so that the owner’s 46-meter ketch can be floated aboard and secured. There’s also a 40-tonne crane for positioning other toys – reportedly up to 70 of them, from launches and cars to a seaplane.

Under the direction of Bozca Design, Karmarine has stripped out and rebuilt the accommodation area at the front of the yacht. There are cabins for up to 20 guests, a glazed sundeck spa pool, a "botanical" garden and an outdoor cinema. The lift between decks runs through a glass tower outside the superstructure.