In the hot summer, I chose this scenic spot which is said to be as low as 18 degrees. It's supposed to be the reason for working days. There aren't many people. You can only get group tickets by finding a tour guide, and the price is much better. When you go in, you have to pay 50 yuan to find the explanation. Otherwise, the landscape lamp will not turn on. Only when the explanation is brushed, the card lamp will turn on. It was really cool at the entrance of the cave. My colleagues rushed to put on the long sleeves they had brought, but soon after they entered, the heat was off, so it was really unnecessary to rent blankets.