About Us
We aim to foster a love for health and fitness for kids—aka our future!—and their families through the sport of ninja, right here in Marquette County.
Our Mission
To inspire children to lead active and healthy lifestyles by providing a fun, safe, and challenging environment where they can develop physical skills, build self-confidence, and make new friends.
By fostering growth through ninja training, we help kids and teens learn that obstacles are opportunities in disguise. We're dedicated to building a community where kids of all abilities, backgrounds, and mindsets feel they truly belong.
Why Ninja Training?
Ninja training isn’t just about physical fitness—it’s about teaching kids to face their obstacles head-on and overcome them with courage, determination, resilience, and grit. With each climb, leap, and swing, children will gain discipline, focus, and self-confidence, learning valuable lessons they’ll carry with them through life. Plus, they’ll have a blast making friends and discovering their inner ninja!
OUR TEAM

JASON PIPER
co-owner
The one who couldn't get the idea of a ninja gym in the U.P. out of his head or heart

ADELA PIPER
co-owner
The one who believed in the dream and the vision for building community

EMMETT LARSON
Head Coach
The one who's been a ninja for 10+ years and led a gym in Green Bay before coming to the U.P.
OUR FACILITY
- Conveniently located in Negaunee on US-41, just 15 minutes from downtown Marquette, 8 minutes from Ishpeming, 20 minutes from Chocolay, and 30 minutes from Gwinn.
- Forest Flyers Ninja has ample well-lit and plowed parking and is moments from food and beverage locations like Border Grill, Contrast Coffee, Subway, Iron Town Pasties, Pasqualis, Teal Lake Pizzeria and more!
- Forest Flyers Ninja operates out of a 6,000-square-foot facility located in Negaunee, MI. The gym features multiple Ninja Warrior style obstacle courses perfect for building strength and agility, and having fun!
Serving children ages 3-17
and offering a great new venue for
birthday parties
every weekend, Forest Flyers Ninja brings energy and community to Marquette County kids!