Did the overnight at West Virginia penitentiary. They way oversell tickets. Was EXTREMELY crowded. My wife and I were considering doing this one but curious as to the approximate number of people that usually attend an overnight session.

It wasn't bad at all when we went. They broke us up into groups of 11-12. You could have 50 in a group and it would not be crowded. Highly recommend going, can't wait to go again. Loved it!

When I was there with my grandmother, our guide told us that the overnight sessions usually have a decent amount of people. It just depends on the time of the year.