NEWPORT BEACH | HARBOR ISLAND 18 HARBOR ISLAND | $59,995,000 | 18HARBORISLANDNB.COM A landmark promontory location defining the spirit of the Newport Harbor - 18 Harbor Island. Here classic architectural structure meets a forward-thinking design aesthetic, creating a one-of-a-kind waterfront treasure with over 300 feet of bay frontage and a yacht accommodation for craft in excess of 120 feet.