PETOSKEY — A new gym is offering kids ages 3-15 the opportunity to learn coordination, build muscle and get out of their comfort zones through parkour, gymnastics and obstacle courses. Cowabunga Ninja ...

KOCHVILLE TWP, MI — There’s a gymnastics center in Saginaw County offering gymnastics classes for kids of all ages, cheerleading, summer camps and “ninja” classes inspired by a TV show. “It’s like ...

If you want to get your kids away from screens, we’ll bet this will do the trick. USA Ninja Challenge is opening its first ...