Introduction to Qionghai: Qionghai is located in Xichang City, Liangshan Yi Autonomous Prefecture. It was called Qiongchi in ancient times. It is a faulted lake in the early Pleistocene and has been around 1.8 million years ago. It is shaped like a snail, 11.5 kilometers long from north to south, 5.5 kilometers wide from east to west, and has a water area of 31 square kilometers. It is the second largest freshwater lake in Sichuan.