Yes, there's a fee to go into the cave, but it's not very much. I agree, go to Groupon to save more!!
A fee, go to Groupon and you can get 2 for 1 tickets
Yes, general admission is $12 for adults. It is free roam though so you can spend as much time in there as you like to admire every speciman :)
There is a fee. I do not remember how much.
There is a small fee. Totally worth the money however. All of this information is on their website.
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