ABOUT US

Discover Yourself

Step into a world of empowerment and self-discovery at UndergrounD Fitness and Self-Defense in Jacksonville, FL. Our Dojo Resources page is your ultimate guide, whether you want to learn off of training videos or master the art of tying your belt. Our dedicated team is here to ensure you have everything you need to thrive in our Montessori dojo. Discover the secrets of our Minja Program, get answers to your burning questions in our FAQ section, and explore the stripe systems. If you can’t find the information you’re looking for, please call your instructors at (904) 704-7888!

OUR TRAINERS

Our instructors love what they do, and it shows. Each one is certified in their field, and regularly attends (or leads!) seminars and workshops about new trends and techniques. 

Innovating a New Frontier of Martial Arts for the

Modern World

UndergrounD Fitness and Self Defense is a testament to traditional martial arts training and perseverance. The founding members have been martial artists their entire lives, but hadn’t dreamed of running a school themselves.


Faced with the unprecedented challenges of COVID-19, while the world turned inward, we chose to expand beyond our limits. Embracing the new era of virtual learning, we transformed a humble garage into a dojo, continuing our practice through quarantine and fostering a community bound by the spirit of martial arts.


There have been many challenges throughout our growth since then, but with the integrated support of the instructors, owners, families and students, we have been able to persevere and prosper. Throughout these events our character and grit have been tested, and we are proud to continue to preserve historical martial traditions while using innovative curriculum to provide a unique training opportunity for anyone, anywhere!


We look forward to training with you, your family, and friends. Together, we can build a better world by strengthening our minds, bodies and characters. Best wishes on your own journey!


-The UndergrounD Team