Yes
Yes they will be open outside weather does not affect the tour
Yes, not only can you view the caves out of the rain, but two an antique car museum and another museum across the street. Very enjoyable.
Yes, most of the exhibits are indoors with the exception of the older buildings in the museum down crossed the road where you need to take a short walk between the building to view them all.
Yes. Only closed on holidays.
Yes, but good to call and check in case of heavy rains.
Wasn't sure cause the caves in mn closed when it was raining due to flooding
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