The Best Gym in Tenafly, NJ
Transform your body,
transform your life.
Welcome to Bergen County’s ultimate hybrid fitness destination. At Underground Training, we break the mold of big-box gyms by offering a dedicated indoor and outdoor functional training facility equipped with top-tier training tools. Whether you are looking for personal training, or are an independent personal trainer looking for a facility to host clients, our community is built to help you thrive.
Results are Non-Negotiable.
Our blend of strength-focused conditioning and individual-focused coaching are the key to reaching your goals in fitness.
Everything is planned for you, all you need to do is come in, work hard and lift each other up.
Conveniently located off Piermont Road in Tenafly, our gym is just minutes from the Roosevelt Common park and the NJ Transit 166 bus stops.
Schedule a Free CallEverything You Need to Thrive.
Sports Performance
Personal Training
Small Group Personal Training
3 Steps to
Unbeatable Results…
Get Started with a Phone Call
Schedule a quick call with our team to talk through your goals, current routine, and what you want to change. We’ll answer your questions and recommend the best next step
Make a Plan
Get started with a customized training plan tailored to your fitness level, schedule, and goals. We’ll break down the next steps clearly so you always know what to work on and how to progress.
See Results
Follow your plan with coaching and accountability to keep you consistent. Track your progress over time, celebrate wins along the way, and keep building strength, confidence, and momentum.
… and Feel Stronger,
Happier, and More
Energized Every Day!
Set Fitness Goals
Like a Pro
Not sure where to start? Take our quick multiple-choice quiz to find your Goal. Cut the noise and get real about what drives you. Find your focus, set goals that fit your life, and build a plan that actually sticks. Simple tools, honest questions, and zero filler, just clarity and direction for your next move.
What you’ll get:
- A quick quiz to find your focus
- Training ideas matched to your goals
- Goal-setting tools that keep you progressing
- A no-BS action plan to get started
