Duke’s is the signature restaurant in the highly successful TS Restaurants portfolio. (One of their eateries, Hula Grill, is located upstairs from Duke’s.) Duke’s is popular for a variety of reasons: on the beach location with great views and ambiance chief among them. Locals love it for their great bar with live entertainment and the signature Duke’s Mai Tai. It’s one of a handlful of Waikiki restaurants that locals will frequent. Duke’s is one of the most iconic restaurants in Hawaii.