From Kangding along the 318 National Road tortuous, is the famous "Kangba First Pass" to the mountains, also known as the first pass into Tibet, altitude 4,298 meters. Along the Panshan Highway, the high reaction phenomenon is getting worse. The weather changes very fast, the sun shines for a while, the clouds are dense, the clouds are shrouded, and the rain is faint. After turning over the folded mountains, it officially entered the Kangba Tibetan area. On the top of the mountain, looking around the Gongga peaks, the mountains are stacked and the snow is white, like a paradise on earth, very spectacular.