Introduction to the Sky Plank Road: The Sky Plank Road hangs in the middle of the stone cliffs of the Hundred-foot Abyss. Above you are the cliffs that are like splitting with a knife and ax, and at your feet is the unfathomable Hundred-foot Abyss. The gauze-like clouds and mist float under the feet of tourists, making people feel as if they are flying in the sky.