The Reed Lake is a semi-swamp lake where many reeds grow. Every spring and summer, green reeds fill the entire vision of tourists. On the occasion of autumn and winter, the lake turns into a golden reed ocean. When the reed flowers are in full bloom, fluffy reed flowers can be seen everywhere. The altitude of the Reed Lake is very high, and the reeds here are not as tall as those low-altitude ones. In the middle of the Reed Lake, there is a flowing water belt, which runs through the Reed Lake and divides it into two halves. This water belt is called Yudai River.