There is a moderate hike up to the cave entrance and inside the cave there is stooping, stairs and a short slide. So be aware if you have mobility limitations or asthma problems.
Highly recommend the candlelight tour in winter. Approximately one third of the candlelight tour is with modern lighting because of the Beaver Slide. The rest is with candles and really is fascinating to trek the rest of the cave in candlelight. The store is closed during the winter.