After hosting hundreds of party's at the farm, We learned a thing or two. If your child is 5 years old or younger choose the 9:30-12:30 party time frame. Do a snack instead of a later lunch, so parents don't disrupt their child's nap time. Younger groups usually do pony rides versus the older crowd including dads like to play the putt putt. Unlike a park, most guests are not sitting around. You chose an amazing place with lots to see. Don't worry too much about seating, it's a common concern. If you choose to create restrictions on your guests don't feel like a cheap skate. When your guests see there is a normal admission to get in, they always understand if you did not want to pay for their entire family and/or ad ons. The suggestion is to only pay for the kids and your immediate family and allow the additional guests to pay their admission.