A very interesting hike with a decent amount of history behind the caves. My tour guide was very knowledgeable and considerate while leading the group through the caves.
I will admit I was a little disappointed by how constructed (flat platforms, grated walkways, and spotlight lighting throughout) the cave was; having explored other less frequented caves before I enjoy the natural/rugged atmosphere of caves but I understand the reason for the construction to make it more accessible as a national park, just not as much my cup of tea.
Regardless a really unique and interesting experience, at ~$20 per person, that is very easily accessible by anyone regardless of age. (Light stooping required for taller individuals, and ~500 stairs total over the whole 1 mile tour.) Plenty of flushing bathrooms at both the lower parking lot (1M 1F) and at the visitor center (1M 1F).