I think it's still good. The first one is that there are free guides in every important cave, the second one is that the battery car leading to the top of the hill is free, and the third one is that the incense in the temple at the cave entrance is provided free of charge. Specifically, let's talk about the strategy of traveling. 7053 small train gets off at Yuanqian Railway Station (it's better to take a bus outside the station, the fare is less than 10 yuan) or Zhangdian Bus Terminal takes K1 terminal, which is Kaiyuan Karst Cave (the bus stop is too close, the condition of the bus is poor, or maybe the one I did is not good). Private cars can go to the foot of the scenic area, besides Karst Cave, there are drift and ropeway. And children's paradise, drifting is 501, ropeway is 30, children's paradise tickets are more appropriate (70 can play eight projects). Down from the top of the hill, it's good to go through a waterfall. Then there are some big fish in the playground, which the children like very much. There is also a suspension bridge under the playground, which is cool (free) with fountains on both sides. There are many hammocks in the scenic area for visitors to use (free). Generally speaking, the vegetation in the scenic area is good, especially in the downward section from the top of the mountain, the combination of trees and water is good and cool. In the end, I would like to remind you that it is best to add clothes to the cave. The air is very humid. Compared with the caves in Zibo, I think Kaiyuan cave is the best one.