The 2025 Kids Ninja Challenge is a family-friendly fundraising event for children ages 4 to 12. Kids are given the opportunity to become ninjas for the day and challenge themselves to 15+ obstacles.

When Concord entrepreneur Dale Grant was first approached with the idea of creating a “Ninja Challenge” gym over a decade ago, he had no idea where the venture would end up. Ninja-based sports, which ...

At the USA Ninja Challenge gym in Concord, kids learn how to swing around on different obstacles and build calisthenic strength while having fun. At the USA Ninja Challenge gym in Concord, kids learn ...