As we arrived early, we had to wait for the first expedition with a local guide. Meanwhile, the boys had a lot of fun in the small zoo next to the park. The tour started in the lecture hall with an informative video, and then we started the descent with a small group of tourists. The scenery was amazing, enhanced by the illuminated superstructure. There were more than 600 steps leading us to impressive rooms, each with its own unique beauty. Despite the sense of security, the walk did take us to the bottom of the shaft (about 130 meters deep) and back down via the elevator with pleasure. I must admit that I stopped halfway due to the fear of damaging my knees during the contract. But it is possible to get a good charm.