We went late and played for less than three hours, and the child was very happy. Take 465 or 466 from the entrance of Jeju Shilla Duty Free Shop to the building block school, and go directly to the gate. If you go back, it is recommended to take a stop at the place where you get off, remember to swipe your card when you get off, and then sit 240 on the opposite side. Go to the customer service center on the left hand side of the door and change the bracelet with the bar code. The place is not big, but the building blocks on display are very characteristic and it is worth taking children.