May I ask if there are many facilities for a 4.5-year-old baby with a size of 1 meter?

There are not many projects suitable for babies, but there are some movies and performances that you can go and watch. For pure play, the first episode is better.

Tickets are free for children under 1.2 meters. There are some facilities for children under 1.5 meters in height, but basically they are the ones that can be played in shopping malls in your own city. If you are purely bringing children under 1.2 meters to play, it is not recommended go.