Ark Ninja

About Us

Ark Ninja is Northern Colorado's premier ninja warrior training facility, dedicated to building strong, confident, and resilient individuals through obstacle-based fitness, character development, and meaningful mentorship. Located just minutes from Erie in Longmont, we offer programs for ages 2 through adult, creating an environment where every participant can challenge themselves, grow in confidence, and have fun.

Our programs include youth ninja classes, competitive team training, toddler classes, teen and adult fitness programs, birthday parties, camps, homeschool programs, open gym sessions, and special events. Whether someone is stepping onto an obstacle course for the very first time or training to compete at a national level, our experienced coaches provide encouragement, expert instruction, and a supportive community every step of the way.

At Ark Ninja, we believe ninja is about much more than physical ability. Through our character curriculum focused on traits such as honor, courage, responsibility, and perseverance, we strive to help students develop life skills that extend far beyond the gym walls.

As the home gym of several American Ninja Warrior athletes and coaches, Ark Ninja is passionate about inspiring people of all ages to discover what they are capable of achieving. Our mission is simple: to help every person who walks through our doors realize they were made for more.

Ark Ninja – Building stronger bodies, stronger character, and stronger communities through ninja training.