Has Huanglong Cave in Zhangjiajie always been so colorful? People who have been there can say something. . . thank you

Not all caves are colorful. If you use a kind of light, it will definitely be boring. That is the effect caused by various colored lights in the scenic spot, and some short stories based on the image make tourists feel interesting. Moreover, in many cave scenic spots, the more beautiful the lights are, there are often photo fees next to them! Haha, there are many caves, you will know, Yan Guan in Guangxi, Zhijin Cave, Qixingyan, Jiuxiang in Yunnan ... Black Dragon Pool in Guizhou ... I have been taking photos and putting them together, so I can't tell which one is ... Haha, remember to adopt!