During spring break, summer and weekends we can accommodate up to 25 people at each tour time. We will then split the group into two smaller groups of 12 or 13. On Mondays - Thursdays during the school year we can accommodate up to 12 people at each tour time. Exceptions are made on occasion during the school year to accommodate larger groups. Please contact the office to see if this is a possibility for your group. Otherwise, you can view our full availability on our book a tour page.