Very fun cave tours! The tickets are a little expensive, but it was worth it for the experience. I was surprised by how low the clearance is at the beginning and a few other areas of the cave. I do not recommend this tour to anyone who can't bend at the waist enough for their torso to be pretty much completely flat from a sitting position.
There is a great little gift shop, a few other touristy activities, and a beautiful campground on the property as well. My kids really liked the playground, too.