Cavern Tours are $15 for adults, $10 for 13 and under and 4 and under is free. They offer a 10% discount for AAA, seniors and military. 15 people or more drops the price to $13 a person, so saves $2 a person including kids. They also offer gemstone mining. Get a bucket for $30, $50 or $70.
They may do a group discount for you if you ask.
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