Vivinavi

Classes for 1.5 year olds can participate, etc.

I have a son who is almost 1.5 years old.
We go for walks around the neighborhood or to the local park every day, but I would like him to interact with other children close to his age and experience new games in a group setting.
Does anyone know of any classes that are easy to join ？ I would like to start with a one-time class if possible, but a long-term class is also fine. If you have any information, I would like to know.
Thank you very much.