
84: M5
This supremely elegant sailing yacht, designed by Ron Holland, is the largest single-masted yacht and the largest sailing yacht built in composite. The nearly 300-foot carbon fiber mast (291 feet to be exact) helps support a 36,000-sq.-ft. sail area, weighing about 3.5 tons, made by Doyle Sailmakers. The foredeck’s tender storage recesses double as a plunge pool and Jacuzzi.