Our teenager sons found it interesting, but my husband and I felt it was a bit of a tourist trap and expensive - $11 per person for a 45 minute tour. Our tour guide was incredibly young (perhaps 17 or 18?), but very knowledgeable and personable.
Beware - at one point in the tour, when you are furthest into the cave - they turn the lights off and it is completely, 100% dark and she kept the lights off so we could listen to the water dripping, etc. I am claustrophobic and was doing my best to hand in there for my kids, but I just about lost it and was having a very difficult breathing and keeping calm.
When I talked to my dad, he did say that he remembered that they had done that when we had visited there when I was a kid. So, it must be part of their regular tour - not just this particular tour guide's routine. So, know this in advance in case someone will have a problem with the lights out.
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