I think the minimum is 3 years old, but anyone younger than like 10 really should have their parent(s) there actively watching them.
It is open to all ages. You'd be surprised by the skills of young kids.
what is the best way to reach UB? I would like to speak with someone regarding my son taking classes.
I have seen very young (less than 2) children there, but not climbing. You need to be very careful with this because they don't understand that you should not walk under someone who is climbing in case they fall. In this case, I would make sure there was a non-climbing adult assigned to watch them.
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