Walking is a traditional cultural and sports activity, which is called spring outing in modern times and outing in ancient times. "On March 3rd, the weather was very new, and many beautiful women took a walk in Chang 'an seaside." Du Fu described the grand occasion of people's spring outing in Tang Dynasty. In spring, the countryside is full of flowers, green grass, birds contend, the sun is shining and the air is fresh. Being in this picturesque environment can broaden people's minds, eliminate fatigue and cheer them up. It can also promote cell metabolism, improve blood circulation, increase the activity of waist and leg muscles, and enhance cardiopulmonary function.