Discover Roman Cartagena on a 2-hour self-guided walking tour that turns the streets of this 2,000-year-old harbor city into your own open-air museum. Starting at the historic Yacht Port, follow an engaging audio guide as it leads you past the Town Hall, the Old Cathedral, and down into the vast Roman Theatre, before uncovering the Molinete archaeological park, the Augusteum, Casa de la Fortuna, and Concepcion Castle. Along the way, quizzes and riddles turn sightseeing into a game, challenging you to spot details and piece together the city's Roman, Byzantine, and modern layers. Everything runs right from your own smartphone, no app or download needed, no physical guide required, so you can start whenever you like and move at your own pace. Your ticket stays valid for a year, giving you full flexibility to explore Cartagena's ancient streets on your own schedule.