SUNBURY, Pa. — It's open gym time at USA Ninja Challenge in Sunbury, and the kids are taking full advantage. The former Edison School in Sunbury was recently turned into a kids-based "ninja" gym.

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 ...

CUMBERLAND COUNTY, Pa. — When kids enter USA Ninja Challenge in Camp Hill, they discover a world of new experiences. “It’s like a kid in a candy shop,” said USA Ninja Challenge lead instructor Bryan ...

Gym kids means children who take part in gymnastics or gym-based movement classes. These activities teach basic motor skills, build strength, and help the brain develop. This article explains clearly ...