A deal with entertainment platform Fever means Tui will offer an initial 350 "Experiences for Locals" in more than 30 UK cities via the Tui and Tui Musement platforms.
Asked if Tui was trying to compete with Ticketmaster, Tui Group chief executive Sebastian Ebel said: “Yes, but what we offer is far broader.”
Fever will bring Tui theatre, music, tours, exhibitions and experiences such as cooking classes.
Peter Krueger, Tui Group chief strategy officer and Holiday Experiences chief executive, said: “We want to sell things other people cannot sell.