We have so many delicious food options within the park! No outside food, beverages or coolers may be brought into Six Flags Great America. Exceptions are made for guests with special dietary needs including certain food allergies and baby food/formula. Guests should visit the Guest Services building to the right hand side of the main entrance when they arrive at the park for approval to bring in special dietary foods. The special dietary food containers will be marked and dated to clearly show that they have been approved for entry into the park.