Introduction to Datianchi: Datianchi is about 250 meters long from east to west and more than 150 meters wide from north to south. It is like a crescent moon quietly embedded between the majestic Yabu Mountain and Yinmu Mountain. It is clear, bright, soft and quiet, and in the sunshine It sparkles with blue light under the illumination. The breeze blows and the water surface ripples slightly, adding endless vitality and vitality to the calm lake surface.