Sister Lake is on the only way to 318, when the sister sea appears far away, the lake is set between the mountains, quietly exudes intoxicating beauty. It is dependent on the snowy mountains and is connected to the rolling mountains. The breeze under the blue sky and white clouds moved the water on the lake, and the sun shining brightly on the lake. On the observation deck, looking at the plateau in the distance, the world is vast and the mountains are endless. Looking at the peaks in the sky, I always feel that their majesty can't cover the desolation. Since entering Tibet, the word "desolate" has rarely appeared in my mind. In fact, "desolate" has always existed, which is a barren and barren land.