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About Us

Yacht Connections

Yacht Connections International has been a premier provider of luxury charter yacht services in San Francisco for over 35 years, showcasing the exquisite views of San Francisco from the comfort of our elegant Yachts. Marti Diamond sold the California Spirit in 2016 to Giants Enterprises, the entrepreneurial arm of the San Francisco Giants responsible for hosting top-rated events at AT&T Park, throughout San Francisco and beyond. In addition, Giants Enterprises now operates Yacht Lady, an intimate 12-person Monte Fino motor yacht. As part of the transition, Marti will serve as a consultant to Giants Enterprises.

The California Spirit and Yacht Lady will contribute to the extension of Giants Enterprises’ diverse array of event options and high-end hospitality offerings. Expect the same first-class service you’ve come to know from Yacht Connections International with Giants Enterprises.

What Sets us Apart

Expect unforgettable events aboard the most luxurious private group charter Yachts on the Bay. Nothing rivals the magic of cruising aboard a Yacht with breathtaking views of the San Francisco skyline, Golden Gate Bridge, Illuminated Bay Bridge, Sausalito and Tiburon as your backdrop. Take these custom-built luxury Yachts, add an award-winning hospitality team and expert crew and you have special blend of luxury and style that can only be found aboard the California Spirit and Yacht Lady.

Experience the newly reimagined California Spirit like you never have before. This beautiful 100- foot custom Westport Hull features warm teak wood, black granite and rich textiles and is designed for maximum comfort on the Bay. The California Spirit features three spacious interior salons, two full bars, intimate Art Deco seating areas and three exterior decks. Located at Pier 40, mere steps away from AT&T Park, Home of the San Francisco Giants, this vessel is prepared to entertain up to 130 guests.

Yacht Lady is a sleek luxuriously, intimate 80-foot Yacht with burled camphor wood cabinetry, suede and soft leather. Dramatic lighting and custom finishes place this Yacht in a class of her own accommodating from 2 to 12 guests.

Who we are

Marti McMahon Diamond, President

650-737-8093 Office


Marti McMahon Diamond is an innovative Yacht designer, builder and owner. Her vision is to create intimate special occasion experiences on the most elegant private Yachts for charter on the San Francisco Bay.

Marti’s fascination with boating began with a 21-foot family boat she helped to restore while living in Chicago. This led her to renovate other boats needing attention upgrading in size and making every vessel better than the last. When the family moved to the Bay Area her hobby combined with her love for entertaining and cooking gave birth to her dream of launching a business that would combine all her passions.

Over the years, Marti’s vision of a premier Yacht charter company did become a reality as she went on to acquire a fleet of four.  She designed and built two of her former fleet, the 130 passenger California Spirit and the 700 passenger San Francisco Spirit.

By the year 2000, Marti decided to move into a new phase of her yachting dream. She downsized from a fleet of four yachts to just one she could enjoy as well and christened her Yacht Lady. Never one to stand still for long, she re-acquired the California Spirit, lovingly restoring it to the highest standards. Today the Yacht Lady and California Spirit are hailed as the Premier Charter Fleet on the Bay boasting staff and crew who are passionate to give guests aboard an unrivaled experience.

“I have been given a gift for creating events with detail, warmth and surprises. My fulfillment comes from sharing this gift with clients, staff and crew so everyone feels exceptionally happy to be present. The Bay offers an experience not to be missed! I am energized after each flawless event knowing I was a part of the smiles of all on board. I returned to the Bay because I missed this and there was a need for an upscale market that offers affordable luxury.”Marti McMahon Diamond President Yacht Connections

Member of:
St. Francis Yacht Club, Pebble Beach Stillwater Yacht Club, Beach and Tennis Club – Pebble Beach and SF Travel

“Our passion of sharing San Francisco Bay on our Premier Fleet is our Mission and is reflected by our entire staff and crew. Thank you for considering Yacht Connections for your upcoming event.”
Marti McMahon Diamond, President Yacht Connections

What our clients are saying …


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Yacht Connections International
Business Office
2000 Sierra Point Parkway Ste.100, Brisbane, CA 94005

Home Port – San Francisco

Pier 40, South Beach Harbor, Embarcadero & Townsend
(Adjacent to AT&T Park, Home of the San Francisco Giants)

Remote Boarding locations available around the Bay

General Information & Reservations
(650) 737-8093 Office

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