Too long... Guide rambled about topics not related to caverns, very large group that lingered and lagged behind... Too many stairs to count....
We were apart of a full group which someone had about 7 kids. Took over an hour. There are a lot of steps
When I went, I was the only customer, so I got to take my time, but normally around 45 minutes.
It is less than an hour. It really depends on your group.
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