A giant yacht that a father and son are building at Loch Lomond Marina in San Rafael, Calif., has captivated the neighborhood’s imagination, with shoppers at nearby Andy’s Local Market keeping daily tabs on its progress.

James Lane, 50, and his 26-year-old son, Michael Johnson, began working on the 65- by 32-foot catamaran in June 2010 in Butte County, but moved the partially constructed vessel to Loch Lomond this spring.

“We should put it in the water in about 30 days,” Lane said, as he showed off the nine-bedroom, three-bathroom 3,200-square-foot boat on a recent afternoon.

The yacht, which Lane will call the Flying Hawaiian, features fiberglass over wood construction and boasts two kitchens and a gym. It weighs about five tons and has so far required 700 to 800 pounds of screws, Lane said. Sixty-five-foot catamarans typically sell for anywhere from $500,000 to $2 million or more.

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