Under the halo of Conch Trench, Yanzi Trench looks cool. There are not many people here, and fewer people choose to go around a large circle. Or I should be glad to choose such an unpopular trail, because of the small number of people, the snow on the trail is not melting, creating a unique feeling, the development of the scenic area is not very high, many things remain the original appearance, along the way there are no shops, no bathrooms, no supplies, of course, along the way also very long time no other people, the original ecological trail. Similar to the wilderness of New Zealand where we have been, the sight of the full ring scene! After more than two hours of rain forest lung washing, through the last big tree barrier, the eyes suddenly open, the end of the rain forest is the most essence of this trip, Hongshitan beach, all over the mountains, the lofty snow mountain background, red and white, appropriate wallpaper level ah! The Red Stone Beach in Luding and Kangding Yajiazhi is unparalleled in the world. Every stone on the glacier bank is covered with red coats. Red stones accumulate on both sides of the river. Groups of red stones turn into a flowing red. They flow down with the clear water, stretching for tens of kilometers, and are of such magnificent scale. In fact, this kind of rutile is a new algae that can only grow in this area, but the cause of its formation has not yet been solved. The same kind of red stone beach has not been found in other parts of the world. So friends who have the opportunity to visit here strongly recommend that they personally experience the visual feast brought by the red stone beach all over the mountains.