The lake's father has many holes, and the karst terrain makes it a "rich" cave. For those who come here, "hiding into the 'hole' into a unified system, managing his spring and summer and autumn and winter" is the best choice to avoid the summer heat - although the temperature in the hole does not let you break into the ice The feeling of the cave, but once you get to the hole, look at the cold white mist that rushes out and let you enter the cool world. Zhanggongdong can be said to be one of the most famous caves of the lake. Like almost all tourist attractions in China, it also has an "old legend" - it is said that Zhang Daoling of the Han Dynasty and Zhang Guo of the Tang Dynasty They have all cultivated here. But I am interested in the development history of Zhanggongdong. The development of Zhanggongdong can be traced back to a village called Yixing Township in the south of Yixing Township. It started construction in 1919, and it has been developing intermittently for more than 10 years. Finally, in 1934. Opened at the end of the year. In other words, during the Republic of China, there were many ethnic entrepreneurs, mostly machinery and textiles, and tourist developers were quite rare. From this, I can see that although I did not know why Shuxiang had done this tourism development in the past, it was indeed in the forefront of the times. From the largest Haiwang Hall in the cave, the temperature rises steadily, and the hole is drilled. It is already the peak of Mengfeng. Looking back, it is like stepping out from a huge eggshell. The wonder of Zhang Gongdong is really "Go to heaven."