That is really cool B2Y.
For a few years we ran a kids night out at our old gym. We had basketball, racquetball and an indoor pool. We used a racquetball court as a disco room.

A fun safe place for kids every Saturday night.
One year we had New Years Eve party for the kids. We all had a blast.
One thing we didn't think about was drunk parents picking them up.
We spent hours driving kids home.