I had called the museum a few days before our visit to ask about the cave tours. I was told that the tours last about 45 min.( also stated on their website) & tours started every hour or 30 minutes after depending on when the last one finished? I was also told that reservations were not taken or required. We arrived at the museum at around 10 to 15 min. till noon. I expected around a 30 minute wait. I went to the front desk to pay for the museum and was told that the next cave tour started at around 1:15 because of a large group that came in. I guess they cater more to large groups than the general public or maybe they just misinform people who call for info. I went ahead an paid for admission to the museum. Very old, outdated, poor lighting & dirty carpet. You can see all of it in about 15 min. An all around disappointment & a waste of time & money.