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Develop Skills


Personal Defense


Ongoing Programs
Welcome to On-Site Family Martial Arts Center, owned by Sensei Harry Charache; a seventh-degree black belt that is passionate about teaching the centuries-old eastern arts. Our center has been open to New Hampshire and Maine residents since 1990, and continues to help teach students of all ages while building confidence, citizenry, and a lifetime of healthy activities. 


For Cardio Kickboxing & Isshin Ryu. Want to start training but don't want to commit? Want extra instruction? We have drop-in prices for our martial arts program that enable anyone to start at their own pace! 

Monday through Friday
9:00am and 3:30pm
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Punch Card

Use our punch card for all Programs, for up to 10 visits to classes for more regular instruction and training. Try 10 classes per month, and build up to a regular program on your time!

Monday and Wednesday
11:00am and 4:30pm
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For Martial Arts programs. A plan that offers value, flexibility, and regular instruction to help get you on the right path. This gives you a monthly plan, with classes 2X per week. 

Monday through Friday
9:00am and 3:30pm
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Adult Fitness

For Cardio Kickboxing & Strength Training. Are you ready to get going with a professional trainer, and keep your fitness goals moving forward, while building knowledge and skills? This is the program for you! This includes unlimited cardio, and fitness equipment usage. 

Monday through Saturday
By Appointment
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Key To Health

Join Sensei Harry and staff for a 10 week intensive self-defense program for adults. Learn what it takes to be empowered to help yourself and others in situations that you didn't ask to be in! Learning blocks from punches and kicks, grabs, from the ground or in a chair, multiple attackers, vs. weapons, and much more.

Graduation includes board braking to give you the understanding if called upon YOU can not only survive but come out with the least damage as possible.
What Are You Waiting For?
  • 1
    Meet With One Of Our Instructors Figure out the program that will work right for you! We offer programs for kids and adults..

  • 2
    Develop An Exercise Program Setup a custom program with our instructors to get yourself on track for the new year!

  • 3
    Build From Your Success As you grow in the program, so will your success in keeping up with your fitness goals. Your instructor will work with you to adjust your program according to your needs.

Blocking an Attacker

How to block getting hit

Watch The Video
Meet Your Head Instructor

Master Harry Charache

With over 35 years in martial arts, a teaching degree in Phys Ed, and more than 25 years in the Seacoast NH region, Sensei (Harry) Charache is head instructor at On-Site Family Martial Arts Center. This seventh-degree black belt is passionate about teaching the centuries-old eastern arts to local students of all ages.

Isshin Ryu Karate 7th dan Master Instructor. Bachelors in Physical Fitness. Sensei (Harry) Charache has operated On-Site Family Karate/Martial Arts Center in the Seacoast since 1990.

Aerobics 75%

Strength 90%

Defense 95%

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Are You Ready To Get Healthy?
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Isshin Ryu Karate

Isshin Ryu Karate (One Heart Way) is a balance of hand and footwork.


Hapkido is a Korean martial art incorporating hand strikes, kicks and joint manipulation techniques.


Kuhapdo is a Korean sword art that has its roots in the Japanese art of Muso Jikiden Eishin-ryu Iaido.

Lil' Dragons

Lil’ Dragons Isshin Ryu Karate is for children ages 3 to 5.

Jiu Jitsu

Jiu-Jitsu at Onsite Family Martial Arts Center

Adult Fitness

Build strength and train for your health.

Cardio Workout

We have a cardio workout that is part of each of our classes.

Israeli Krav Maga

Israeli krav Maga is an Israeli combat system designed for economical self defense.

A Healthy Lifestyle Starts Here

Get ready to take advantage of our strength training, martial arts and self defense classes, as well as working with some of the best trainers in the industry. When you join On-Site Family Martial Arts Center, you are more than a member, you're family! Gym Membership while family member is in karate class. Take advantage of the time. $10 monthly added to the tuition. Sensei Harry will help guide you to the workout that best suits your goals.

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Contact Us Today

  • Operating Hours:

    See Schedule
  • Address:

    6 Robert Ave Unit A, Portsmouth, NH 03801
  • Telephone:

    (603) 433-3179
  • Email: