Tianchi was called Qilianchi and Qilianpo in ancient times. In 15, Tang Zhenyuan set up a royal animal husbandry overseer around Tianchi, herding 700,000 horses every year, so it is commonly known as Ma Yinghai or Mother Sea, with an area of about L square kilometers, a water depth of 10 meter and a water storage capacity of 8 million cubic meters. The alpine lakes around Tianchi Lake are Chi Yuan, Pipa Sea, Duck Sea, Caspian Sea, Outer Sea, Small Sea and Dry Sea. Tianchi Lake is surrounded by many lakes, just like standing out from the crowd. The water in Tianchi Lake is unique and inexhaustible after a long drought. Ming Che is cool, and you can fully enjoy the magnificent scenery of lakes and mountains.
Tianchi first became a tourist attraction, which can be traced back to the Warring States Period about 2,300 years ago. In the Northern Wei Dynasty, Tianchi officially became a royal tourist attraction. According to legend, Emperor Xiaowen of the Northern Wei Dynasty once pierced seven fish with golden beads and put them into Tianchi to see if they could sneak into the Sanggan River. He also hit a flying whale in the pool with an arrow, both of which were later obtained in the Sanggan River hundreds of miles away. During the Sui and Tang Dynasties, Tianchi tourism reached its peak. Yang Di once built a magnificent Fenyang Palace around Tianchi. 15, Tang Zhenyuan set up the Royal sheep farm around Tianchi, herding 700,000 horses every year, so Tianchi is also called Ma Yinghai.
More than 2,000 years later, Tianchi still welcomes tourists from all directions with her beautiful light of "the sun never dries up, the rain never overflows, and it is as clear as a mirror".
With the continuous development of tourism, Tianchi, which was listed as the first of the eight ancient scenic spots in Ningwu by the ancients and known as "Tianchi Jinlian" or "Tianchi Xia Ying", has now been opened up as a provincial-level tourist attraction.
The earliest records of Tianchi Lake can be found in Shan Hai Jing and other works. Later, it was recorded in Zi Tong Zhi Jian, Sui Shu, Tang Shu, San Guan Zhi, Jin Wen and other ancient books. As early as in The Classic of Mountains and Seas, there were two Tianchi Lake, one of which is Ningwu Tianchi Lake, which has the most complete Quaternary glacial landform in China and has been a resort for summer sightseeing and hunting since ancient times. In midsummer, it is refreshing to bathe in the breeze by the Tianchi Lake and watch the beautiful scenery of Fenyuan Resort. Tianchi is in harmony with more than ten alpine lakes such as Chi Yuan, Pipa Sea, Duck Sea, Laoshihai, Liganhai, Waiganhai and Xiaohai.