Seven Colored Sea is located 7 kilometers northeast of Mugecuo, about 3 kilometers below Yaochi Feiquan. It is a barrier lake formed by geological processes. The Seven Colored Sea is crescent shaped, with a water area of about 20 hectares and a depth of more than ten meters at its deepest point. Its water source mainly comes from the melting of ice and snow in the upstream and groundwater. It is a lake where lake water and hot spring water blend and coexist. Surrounded by primitive forests, it is elegant and quiet, named after the seasonal changes in the color of the lake surface with sunlight, weather, and surrounding scenery. Against the backdrop of Lianhua Snow Mountain, there is a soul stirring tranquility and peace, and occasional bird songs or human voices further highlight the rarity of human activity here.

In spring and summer, the forest is lush green, birds chirp and chirp, and the lake surface is thick and green like jade; The golden autumn splashes with flying red, the mountains and forests are covered in colorful hues, and the gentle breeze pours over the lake like a palette; In the middle of winter, snow presses down on the green pine trees, making them pink and jade like a fairy tale world. The colorful prayer flags around and the Mani pile engraved with true words add a touch of mystery to the deep Seven Color Sea. The colors of Fengma Flag are divided into five categories: white, yellow, red, green, and blue. White is pure and kind, red is vigorous and vigorous, green is gentle and peaceful, yellow is kind and talented, and blue is brave and clever. The prayer flags and manidui are important expressions of Tibetan folk culture, and also external symbols of the cultural spirit after the integration of Tibetan Buddhism, symbolizing the harmony between heaven, earth, people, and animals. So, please do not pull, cross over the prayer flags or pick up the Mani stones on the Mani pile during the visit.