We Love Adventure
We're WCM
We're here to help you along on your sailing journey, wherever it might take you.
Founded in 1999 as a multihull sales/brokerage office, WCM expanded to include a world-class sailing school and catamaran charter operation with locations in Southern California and The Sea of Cortez, Mexico.
Headquartered at Safe Harbor Sunroad Marina on Harbor Island in San Diego, WCM offers a unified and experienced team, with one goal: Helping you along on your sailing journey.
Recognizing that every sailor’s story and journey is unique, WCM has a variety of programs to engage sailors at every level. Award-winning ASA instruction for new and experienced sailors alike, bareboat and crewed catamaran charters for a few hours or a week or more, and an active sailing club to tie the community together through fun sailing options and social events. For those looking for the perfect cat for their own adventures, WCM has one of the most experienced sales teams on the planet, ready to go to work for you.
The WCM Crew
Or some of them, anyway...

Kurt Jerman
Owner & Founder
Email Kurt • Call 619.571.3513
Kurt Jerman has made his life’s work in the boating industry as a cruiser, salesman, brand ambassador / distributor, broker, working in manufacturing and running a charter operation and sailing school. He is the owner and founder of West Coast Mutlihulls, and enjoys nothing more than creating long lasting friendships with the sailors he encounters everyday as WCM guides them along their various journeys, from novices to those seeking distant horizons.

Guinevere King
General Manager / Director of Sales & Marketing
Email G • Call 619.365.4326
Guinevere has been sailing and living aboard her 47’ sailboat since 2014, enjoying a bit of the cruising lifestyle in Southern California and in the Sea of Cortez with her partner – Photographer / Videographer Eddie Frank. She is passionate about sharing this unique lifestyle with others and found her calling when she met Kurt Jerman at WCM in 2018. She took over sales of charters and lessons in San Diego and Mexico in 2019, and is excited about WCM’s future as the premier Catamaran Sailing Adventure Company and ASA Sailing School.

Kim Dumas
Sales - San Diego and Southern California
Email Kim • Call 619.248.3194
Kim is a licensed California yacht broker with more than 30 years in the boating industry. She began her career in charter and sailing school operations, where she learned to sail and met her longtime business partner, Kurt Jerman. For over 10 years, Kim and Kurt have specialized in new and pre-owned catamarans, together selling more than 110 catamarans and trimarans. As a boat owner herself, Kim offers firsthand insight into ownership, maintenance, and real-world cruising considerations. She also represents power yachts and sailboats with Denison Yachting, which shares offices with West Coast Multihulls.

Don Margraf
Sales - SF Bay Area and Northern California
Email Don • Call 510.469.3330
Don Margraf still thinks of himself as a sailor… and rigger, and inventor, and teacher, and writer and guitar picker. As a sales representative for various multihulls, he has helped scores of couples, solo sailors, cruisers and racers find the right boat for their needs, and helped them at every step to get more out of their sailing.
With over 30 years in the boat business, Don has been a delivery skipper, a surveyor, a consultant to builders, owner of a rigging business, and a protege to a naval architect. As a rep for most of the major multihull builders, he is familiar with the concept strengths of each design. As a rigger, he has inspected their engineering details. As a sailor, in deliveries, races and cruises, he has seen first hand what most of them can do on all the big oceans.
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