Exploring the edge of the city alone late at night does bring a strong sensory impact, but this behavior is like dancing on the tip of a knife. As an urban adventure photographer, I used to shuttle through the abandoned factory area. Under the moonlight at three o'clock, the rusty gantry crane would cast the mythical and treacherous shadow of Cthulhu. The moment the adrenaline soared when I met the drunk man staggering around the corner, the compression of the sound field formed by the howling of wild cats one after another in the wet roadway, and the tingling sensation in the back of the neck when the mobile phone signal suddenly disappeared, are deconstructing the safety illusion of urban civilization. The real danger often begins when a certain silhouette in a hoodie starts to keep pace with you from 30 meters away-this is when you suddenly understand why detective novels always emphasize avoiding dead ends with stagnant water and reflections. If you don't want to try, please bring at least an emergency alarm that can trigger 110 automatic positioning, and remember that the direction with the densest neon lights will always lead to the main road. (Recommended experience method: instead, participate in an urban adventure group with professional security, or satisfy curiosity in a virtual reality game)