This week on Perspective we take you to a world-class running event, Singha Ultra Trail, in Chiang Rai. Check out the 122 kilometers trail that is rich in nature. Meet Mr.Nop Peeradon Suksawat, the Ultra-Trail Chiang Rai Route Planner, and Mr.Jay Jantaraboon Kiangchaipaiphana, Asia’s top trail runner.