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Welcome to Portside Marine

Portside Marine has been established in 1989 and been growing with our dream.

We started as a general sales agent of President Yacht, which enables your dream to own your only one custom built yacht in the world.

We are also an agent of Princess Yacht in Japan which is one of the boat builder leaders in the world.

We love ocean and marine life
and are making utmost efforts to provide the following exellent service to the boat owners who love ocean life too.
to help our customers reserch and select the best boat
to provide the best condition boat and maintenance service
to support customer's cruising which stimulate the new thrilling moment as epicurean with the owners.

In order to enhance the joy of the cruise, we are also an agent of the seatoy SEABOB and
develop the Boat Control System which ensures the safety at the docking and undocking.

Our mission is
to be your best partner of your marine life
by listening your honest comments and providing the updated worldwide information

Portside Marine image PRINCESS 88 Motor Yatch
The 88 Motor Yacht is built on the latest Princess hybrid hull capable of longdistance passage-making or fast port-to-port cruising. In both cases, her comfort levels are sublime.

Across the vast one-level deck saloon and dining area light and seascape pour in. At the touch of a button, a balcony unfolds over the sea, opening up the saloon to the world beyond and creating the perfect vantage point for drinks before dinner.

Exquisite detailing and the finest fabrics and materials combine in the 88 Motor Yacht, in a sanctuary of relaxation and luxury.

Portside Marine image PRINCESS S72
The S72 Sportbridge ? Incredible space. Unrivalled performance.

A top speed of 38 knots, taut handling and surging power deliver a thrilling sense of acceleration and control. Space, inside and out, is remarkable. The glass and stainless-steel saloon doors and window slide away, doubling the size of your social area with the deck saloon and cockpit all on one level. Move up to the concealed Sportbridge, to find an incredible, deep-sided deck to enjoy the ride or simply the sun.

Open the sunroof and the entire saloon feels like it has become part of the deck. The cockpit, with its wraparound seating and wetbar, hydraulic bathing platform and tender garage combine to deliver the ultimate base for watersports.

Portside Marine image PRINCESS V48
It’s an open and shut case.
With the V48 you can choose the Open, Mediterranean-style design with a full-length cockpit and sunroof or the Deck Saloon model for an elegant, enclosed and climate-controlled interior. You can have a lower deck saloon for added entertaining space or a third cabin if you like to cruise with company.

The styling is your choice too. Rovere oak, Serotina cherry, Light oak or American walnut. Hand stitched leathers and Newport linen panelling.

The V48 is fitted with the Volvo IPS drive system, renowned for its fuel efficiency, while joystick control delivers superior handling and increased manoeuvrability when docking.Open or Deck Saloon, the V48 has built a worthy reputation as a class leader.

Featured Boat
photo of 107' President Triple Deck 107
107' President Triple Deck 107
2010 US$ 5,570,000

President 107’ Triple Deck Mega Yacht

President Boat International Co., Ltd.                                                                 


White Lotus VIII was designed to achieve pleasant living area, absolute safety and fansastic cruising experience

as its main theme by PRESIDENT YACHT which has been satisfying Japanese people's sensibility.

This mega yacht was certified by ClassNK ( Nippon Kaiji Kyokai ) which requres international high safety standard. 

Class NK is an initial member of ( IACS -International Association of Classification Societies )since 1968.

 IACS is to represent the international Class association and an international organization to lead the industry in order to enhance the ship safety.

Class NK has been assigned as chair association and contributed to achieve the mission of IACS.It is most trusted in the world classification!


The triple deck tactfully designed in order to provide the spacious cabin space beyond your expectation.

Oceanic main saloon with natural light and sea breeze give you a ultimate relaxing time at delightful aft deck.

Gorgeous owner's room, VIP guest room and other cabins are equipped with state of arts furniture and amenity. 

Leading-edge navigation system including bow and stern thruster, fin-stabilizer and other updated navigation equipment fullest provide to a safe and pleasant cruising. 

White Lotus VIII has been maintained to keep excellent conditions just after her launch by experienced Japanese Captain and hardworking crew. 

Yacht body and hull have been repainted with awlgrip by skillful craftworkers in 2014 and these are shining more than new yacht.


Please think to sail with this triple deck 107 at "Used in Japan" and we are confident that you will love her.


Feel free to contact us if she is intriguing for your cruise life !

Portside Marine

Mariena Plaza 6F, 4-2 Shiraho
Yokohama Ciry, Japan 236-0007

Tel +81 (0)45 770 6141
Email Us


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