Viator sold us tickets for a tour that does not exist. After reading other reviews and checking the site's website, we were suspicious that the facility actually closed at 7 pm, not 9 pm that matched the tickets sold by Viator. We barely made it in at 6:45 on a Thursday night for a tour that closed at 7 pm. The ONLY night that this site is open until 9 pm is Saturday night. Do NOT buy this ticket thinking you can use it on a Thursday night. Viator needs to update its website. NO offer of a refund was made available nor the option to change the dates.