At the bottom of the cavern, they have the "undergound ballroom" where they perform bluegrass concerts. There was a very "Phantom of the Opera" type pipe-organ likeness (hooked to electronic sound equipment) and a chandelier suspended 60 feet from the caver floor. Imagine your senior prom at the bottom of a cave.
We also visited with Joshua's parents, playing Dr. Suess fruit bocci-ball while we waited for them to finish their missionary duties for the day. Have you ever see a mock orange? They smell like lemon cake. Very strange.