Starting from Lhasa, 220 kilometers north of G109 National Road is Saint Lake Namco. The big black eyes are like the stars in the sky, following you for thousands of miles, guarding you for thousands of miles, just like Tanggula singing Namutsu, sweet and sweet all his life.) Yundan Jiumei sings Namutsu like this. The love legends of Namtso and Niancheng Tanggula are so long that everyone who has been here will only miss them more. In May, Namutso, the ice and snow are not melting. Compared with the blue and pure summer, the white Namutso is enough to make me linger and forget to return. Here's an important reminder - "G109 National Highway is a speed limit checkpoint every dozen kilometers. Occasionally, there are small boxes with cameras on both sides of the road. The possibility of being photographed is almost 100%. Every checkpoint will receive a note clearly marking the speed limit and time limit. Don't rush to get on the way. Don't miss the scenery. Fines are even worse.