"Marathon is my career choice, trail running is my hobby" said by Guan Yousheng, a trail runner who is known as "China Speed" among trail running group. In his view, the marathon is a platform for him to move towards the stage of life, to reach the peak moment of life.

Compared with the marathon, trail running is more like an adventure - a relaxing and enjoyable sport. Back to nature, he ran into the mountains, hearing his own breath and the tweet from the birds. Trail running is a gift from the nature for everyone.