TUI AG engages in the provision of tours, hotels and resorts, and cruise services. It operates through the following segments: Hotels and Resorts, Cruises, and TUI Musement. The Hotels and Resorts segment refers to all its hotels and hotel shareholdings. The Cruises segment includes joint venture TUI Cruises, its subsidiary Hapag-Lloyd Cruises as well as the British cruise business Marella Cruises. The TUI Musement segment relates to providing services in destinations. The company was founded on October 9, 1923 and is headquartered in Hannover, Germany.