The day of the visit was the heat wave, and there was more than 40 degrees Celsius outside, and the cave was extremely cool. In order to protect those thousand-year-old murals, the parts that can be visited in the cave are all murals that were re-painted according to the original picture in the later stage, but they are carefully made. Unfortunately, I booked only the remaining tickets for the German tour that day, and I had to rely on my husband's translation to understand what the tour guide was saying.