KōL Izakhaya is a sleek restaurant in Hyde Park Corner that serves up contemporary Japanese cuisine. Sample a variety of Saki options or cocktails prepared by the mixology team as you ponder the menu. Order a few plates of sushi, something from the Japanese robata grill, or try your hand at cooking your own food on a hibachi. It’s a perfect spot for an elegant date night but consider yourself warned: a visit does not come cheap.