More of us now live in cities than ever before, and the spaces we live in are increasingly governed by agendas of safety and security. Arguing against safety may seem counter-intuitive. However, a culture of safety brings limitations and fears that have the capacity to turn us into passive spectators in our own lives, especially in cities where high land values create dense areas of exclusion. Yet there is always a city within the city to explore. Underground and in the sky, the secret arteries of infrastructure and the forbidden heights of buildings are open to urban explorers who want to reclaim lost history and their right to roam the urban wilds. Bradley Garrett argues that rather than accepting the pre-packaged, safe, passively consumed entertainment on offer, we must make our own adventures by embracing the unsafe city as our playground.Bradley Garrett is an American researcher, explorer and social/cultural geographer at the University of Oxford. He is the author of Explore Everything: Place-hacking the city, an ethnographic account of the activities of urban exploration group London Consolidation Crew (LCC).