---
title: UndergrounD Fitness and Self Defense
description: Jacksonville's premier Montessori-based martial arts and self-defense academy for all ages.
url: https://www.artsume.com/o/underground-fitness-and-self-defense
type: organization
createdAt: "2026-03-30"
updatedAt: "2026-09-29"
organizationType: Company / business
location: Jacksonville, FL, United States
website: https://www.underground-training.com/
---

# UndergrounD Fitness and Self Defense

*Company / business • Jacksonville, FL, United States*

## About

Jacksonville's premier Montessori-based martial arts and self-defense academy for all ages.

UndergrounD Fitness and Self Defense is a martial arts and self-defense academy located in Jacksonville, Florida. The academy uses a Montessori-based approach to teach fitness and self-defense skills to students of all ages. Classes are offered throughout the week with experienced instructors dedicated to helping members reach their personal fitness and safety goals.

## Details

- **Address:** 8769 Old Kings Rd S, Jacksonville, FL 32217
- **Website:** https://www.underground-training.com/
- **Social Media:** tiktok: https://www.tiktok.com/@underground_training2021, youtube: https://youtube.com/@undergroundtraining5823, facebook: https://facebook.com/, linkedin: http://linkedin.com/, instagram: http://instagram.com/, pinterest: http://pinterest.com/

## Programs

View current programs from UndergrounD Fitness and Self Defense on Artsume: https://www.artsume.com/o/underground-fitness-and-self-defense