Unless or until Legoland comes up with a process for allowing parents to reconnect with their child after the party I do not recommend booking a party at Legoland.
Most significantly, Legoland will not allow parents to walk into the facility to pick up their child – nor do they have any other solution as to how the parent of the birthday kid is supposed to deliver 16 party guests ages 6 and 7 (in my case) to their respective parent. The whole process was inflexible, and the treatment was poor. I had my son’s 6th Birthday party at Legoland and unfortunately, we ran into nothing but problems.
