TUI AG engages in the provision of tour, hotel and resort and cruise services. It operates through the following segments: Hotel & Resorts, Cruises, and TUI Musement. The Hotel & Resort segments comprises all Group-owned hotels and hotel shareholdings of TUI Group. The Cruises segment consists of the joint venture TUI Cruises, its subsidiary Hapag-Lloyd Cruises as well as the British cruise business Marella Cruises. The TUI Musement segment refers to the companies that are providing services in the destinations. The company was founded on October 9, 1923 and is headquartered in Hannover, Germany.