Join the Gallatin Valley YMCA and several community partners for Healthy Kids Day®, a FREE community event with healthy and fun activities for the whole family. Summer is the time for kids to get up, get out and grow. But for some kids, exposure to activities that stimulate the body and mind ends with the school year. In fact, research shows that kids are prone to gain more weight and fall behind in studies. Healthy Kids Day® is our national initiative to improve the health and well-being of kids.