How to write the invitation letter for Jiaozi's parent-child activities from winter solstice?

Dear parents and children, I am very grateful to you for participating in the parent-child activities during the winter solstice. I believe that during the activity, you felt the festive atmosphere of winter solstice, realized the interdependence between parents and children, and enhanced the feelings of parents and children. I also hope that you will have time to participate in parent-child activities frequently in the future, which is good for the healthy growth of children. We will also devote ourselves to serving children and parents.