What is the maximum number of children and adults allowed for the birthday party? Please see below; The maximum number of children per room - 20 The maximum number of adults per room - 10 Related articles How long is the birthday package experience? What is included in the birthday party? Can I bring my own Birthday Cake for a Birthday Party Package? What is the minimum number of children required for a birthday party? How long does it take to go around LEGOLAND Discovery Centre Melbourne?