We went early arriving at 8:00AM when they had just opened gates and were glad we did. It took us a few minutes ti figure out where we were supposed to enter cave because there really weren't directions on signs.
We chose the easy route thru lower cave. It is extremely dark and we had small flashlights so we went back to car to grab headlamps. Boy did we need those. It was not a difficult walk but there were some places that you had to pay close attention to your footing due to rocks on ground. Truly awe inspiring and we took our time enjoying. After we came out we saw the parking lot had filled up and there were many families with small children so we we lucky that we had gotten to experience the quiet marvel by entering early.