'OK' Karmarine

A 146m semi-submersible explorer superyacht hosting a yacht, plane and up to 70 ...

'OK' Karmarine

If you have any questions about the 'OK' information page below please contact us.

The 146m/479ft mega expedition yacht OK was launched in 2022 following a three-year conversion at the Karmarine shipyard in Turkey. She was originally the transportation ship SUPER SERVANT 3, built at Japanese shipyard Oshima Shipbuilding in 1982. Her new exterior experience was designed by Timur Bozca, winner of Young Designer of the Year 2015, and she accommodated up to 20 guests along with her expert crew.

NOTABLE FEATURES OF OK: ~Semi-submersible ~3,000m2/32291ft2 of deck space ~Storage for up to 70 water toys ~Ability to drive on land vehicles or sail on vessels ~Tennis court on main deck ~Alfresco cinema ~Botanical gardens ~Four aquariums ~3-year conversion from transport vessel ~Air conditioning ~Wi-Fi


The main deck aft is the stand-out feature for explorer yacht OK: The deck is semi-submersible by taking on ballast and later ejecting it to refloat the deck above the waterline. This technique means that sailing vessels such as the planned 46m/151ft sailing yacht and seaplane can easily be launched and stored back on board at the end of the day.

There is a 40-tonne crane along the stern to assist in the launch and retrieval of less manoeuvrable water toys, and land vehicles can also be driven on board from the aft, with a set of steps leading from the lower deck swim platform.

The foredeck offers a spacious outdoor social area where sun loungers, sofa seating and alfresco dining facilities can be placed around the edge to enjoy panoramic views of the surroundings.


'OK' Specifications

Beam:32.01m (105'0") 
L.O.A.:146m (479') 
Max Speed: 
Engines:2 x Stork 6TM410 4250hp 
Cruise Speed: 

Few details have been revealed about the interior layout, however, there is an indoor swimming pool, botanical gardens and four aquariums among the unique features onboard.

A pair of Stork 6TM410 engines each producing 4,250 HP ensure that she can cruise far and wide.

Yacht Accommodation

The accommodation sleeps a maximum of 20 guests. The experienced crew will ensure safe operations and first-class service wherever she travels.

Amenities and Extras

We do have available further amenity, owner and price information for the 146m (479') yacht 'OK', so please enquire for more information.

'OK' Disclaimer:

The luxury yacht 'OK' displayed on this page is merely informational and she is not necessarily available for yacht charter or for sale, nor is she represented or marketed in anyway by CharterWorld. This web page and the superyacht information contained herein is not contractual. All yacht specifications and informations are displayed in good faith but CharterWorld does not warrant or assume any legal liability or responsibility for the current accuracy, completeness, validity, or usefulness of any superyacht information and/or images displayed. All boat information is subject to change without prior notice and may not be current.

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