How long is the St. Louis Zoo open?
The St. Louis Zoo is typically open from 9:00 AM to 5:00 PM, seven days a week. However, it is always best to check their official website or contact them directly for the most accurate and up-to-date information on their operating hours.
I'm sorry, but I don't have access to the internet. You can check the official website or contact the St. Louis Zoo directly for their current operating hours.