Changhai, 3060 meters above sea level, about five kilometers long and 600 meters wide, has an area of 930,000 square meters. The mountains beside the Changhai Sea are covered with snow all year round, and the forests around them are green. Standing on the viewing platform of the Changhai Sea, you can see the blue sky and white clouds, and the snow-capped peaks. It feels that the mountains and the sky are connected with each other and there is no distance. This is also a great view of the Changhai Sea. Poetry and prose: reflecting the sun, snow mountains, clouds and clouds, followed by ancient trees and green waves. Changhai is the highest elevation and widest sea in Jiuzhaigou. The lake is blue, the trees are green, and the reflected water is quiet and beautiful. Like this kind of open vision, this is the unique Haizi in Jiuzhaigou. It's very suitable for taking wedding photos. Sitting quietly on the pavement, my heart is very quiet. The Changhai can be used as the first stop for trench travel.