"The deepest impression in your life," says the advertisement. Really impressive! We visited a real mine, it is damp below, water is dripping, a former miner conducted an excursion, showed how the equipment works. He took us for a ride on trolleys. Something was creepy, something loud, but very interesting and informative. It is useful for children and adults to know about hard work on the verge of survival!
If you are not a fan of mining industrialism and museums on this topic, then there is nothing to do here. It's just an old mine, from which they are trying to "squeeze" some money in order to somehow preserve the remnants of former success from complete zeroing.