It might last 10-20 minutes per attraction but i was there for a good fews hours. There is so much to do/see there.
Appropriatly 10 minutes
You're going to have to experience the park for yourself. It might have changes this year that it didn't have last year. For example, I went one year when they included a house that was completely dark and you had to navigate your way through it. Another year I went and they didn't even have this attraction anymore but changed the Haunted Trail up a bit. One thing you can be sure will always be a staple of this haunt park is Verdun Manor. Honestly the amount of times it takes to get through the attractions depends on how busy the night you goes is. I've been when the park is absolutely dead and I've been when it's incredibly packed. (I think the packed nights are actually more fun though.)
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