Introduction to One Line Sky: Below Wenshu Cave, the width is only 2 meters and the narrowness is only half a meter. The winding road in the middle has many levels and can only allow one person to pass. When people walk there and look up into the sky, there is only a thin line of blue sky left. If it were not for Zi and Wu, the moon and sun would not be visible, so it is called Huangshan's thin line of sky.
Attraction