Yunnan-Tibet border - where the mountains meet the sky 02 The stretch of mountains and winding roads seemed endless. After many turns, we finally came to "first bay". The real challenge is about to begin. It is recognized that the most difficult route to enter Tibet -- the third inspection line, which has 220 kilometers of non-paved road from Chawarong to Chayu. The plateau environment is in the snowmelt season, so it is necessary to pay attention to the quicksand and falling rocks on the mountain. With a large group and no supply points in between, it was a difficult task to get a large team through safely and smoothly. This road is difficult and beautiful at the same time, which is endowed with mysterious color and attracts many knights to conquer. Yunnan-Tibet border, the beautiful road between the canyons, along the nu river upstream, we brothers started a new journey. Coming to the Yunnan-Tibet border, we officially entered the Tibetan area. Farewell to the flat road, we rode into the non-asphalt pavement. On the left, there are cliffs and the raging nu river. On the right, there is a large rock face, on which the rocks are tottering. The water holes in the middle of the road and the stones that have rolled down make the cycling brothers be full of energy.