A wonderful tram. Huge atmospheric grottoes. Turquoise lakes. Long, high bridges. Stalactites and stalagmites. Fabulous outlines of the underworld, the play of shadows from colored spotlights. Clean saturated air. All this was very impressive and etched into my memory. I recommend it! In summer, add about half an hour of standing in line at the ticket office to the time of the tour.
An interesting tourist place. A mini-subway train takes you to the cave from the surface. It's cool inside (sweaters need sweaters, but you can rent blankets). Everything in the cave is equipped for excursions. The guide tells an interesting story, gives time for a photo. In general, the visit was informative. The only thing is better to get to the opening or to the next session (as we did), when we went out there was a huge number of people in the lobby - apparently excursions arrived.
A wonderful, legendary place, for the sake of which we came for a day during our vacation in Adler. The tour was interesting, the route was thought out and safe, if you do not make adventurous attempts to look away from the hiking trail. You can easily get lost. The locals were surprised at the entrance to the cave with their indomitable desire to collect additional fees for photo and video shooting. Don't be fooled by these extortion attempts. Everyone was filming in the cave, both those who had been divorced and all the normal tourists who remained. We were lucky then, and we returned safely to Adler with great impressions. In the current difficult situation, I would not go there!