The California WellBeing Institute, a 270-room luxury hotel, health center and spa near Westlake Village, opened this week. The 769,080-square-foot, $250 million project at Ventura Freeway and Lindero Canyon Road includes a six-story hotel; health center and 40,000-square-foot spa; restaurants and shops; a conference center; and 41,000-square-foot television studio. Four Seasons Hotels and Resorts runs the hotel element, which also features two restaurants, including a sushi bar with 2,000-gallon saltwater aquarium. The medical portion is managed by California Health and Longevity Institute, based in Santa Monica, and offers cosmetic procedures, body scanning and diagnostics, outpatient recuperative services, cosmetic dentistry, proprietary DNA-breakdown testing and imaging technology. The project is the brainchild of David Murdock, the billionaire CEO of Dole Foods Co., and sits near the company’s headquarters.