We are family-owned and operated Kempo Karate – Jiu Jitsu Self-Defense School


We are family-owned and operated Kempo Karate /Jiu Jitsu school, with our foundation in Kajukenbo - a.k.a. “The First American Mixed Martial Art”.  


We believe and encourage family values both in and out of our Karate school. We do our very best to create a family friendly atmosphere for both our students and their parents.

We operate our school the old-fashioned way with an emphasis on true values like honesty, integrity, trust, personal service and customer satisfaction. 

Each student is unique and we treat each of them as individuals.  We want our students to also feel a sense of unity and being part of a team during our drills. The connection they feel when they are working together becomes the connecting tissue that true martial artists feel when they have a common goal. 

We empower our students to set goals and to reach those goals with dedication and hard work. These character skills will give them direction and set them on a path of positive mental, physical and emotional growth.  We are committed to the success of our students.

This is why all our belt advancements are earned with a focus on the individuals strengths starting from the very first day of training.


We Do Not believe in social promotions or participation trophies.  Our students Must know the required techniques for their belt rank in order to advance; otherwise the student is given a false sense of confidence and security.

Without the trust and confidence that the parents and students have in our ability, we would not be able to do what we do. The parents and students that continue to train with us are the true testimonial that makes our school so successful.

We are very proud of our students and their dedication to their training.  

The strong and positive feedback from our students and their families is and always has been the best compliment and our best endorsement. When someone comes in to inquire about our school and the programs we have to offer, we strongly encourage them to speak to our current Student-family members.  We are more than grateful to our martial arts family members, from the students to their families for their compliments.

About Us

Please let me take a minute to introduce you to the Crino Family. Starting from the right: Sensei John, Myriam, Sensei D.J., Sensei Sil Jr. and Sensei Sil. 

Crino’s Martial Arts is a Full-Time Martial Artist School, both Sensei John and Sensei Sil are Professional Instructors who continue to train and teach for a living, this is not something they do part-time, for them it’s their lifestyle.

We believe Martial Arts is about Self Discipline and Self Discovery. We encourage old fashion family values like Respect, Trust, Dedication, Loyalty and Integrity, both in and out of our Karate school. We do our very best to create a family friendly atmosphere for both our students and their parents. Martial Arts in Stony Brook

If you are looking for a Karate / Martial Arts / Self Defense School that puts you and your children first, then give us a call!  We are committed to spreading our knowledge of the Martial Arts and Empowering All of our Students to be the Very Best they can be not only in Martial Arts but also in their Personal Lives.

Crino’s Martial Arts believes in Quality Training that does not break the bank and in leading the industry in personal service. At Crino’s Martial Arts you are a member of our Kempo Karate Family and never a number on a spread sheet.

Crino’s Martial Arts is conveniently located within 5 to 10 minutes from:  Lake Grove, Nesconset, St. James, Setauket, South Setauket, East Setauket, Centereach, Selden, Smithtown, Lake Ronkonkoma, Ronkonkoma, Terryville, Port Jefferson Station and Port Jefferson. We have the pleasure of saying that many of our families are from these surrounding communities.  Since 2009, Crino’s Martial Arts has been happy to be part of numerous fundraisers that have assisted the local communities, families and schools.

For Information

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I screen all my calls, I receive so many solicitations calls, so if you call, 

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Parent Name (if student is under 18)

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Hours of Operation

Proudly Teaching Students In And Around The Following Areas:

Stony Brook  |  Setauket  |   Nesconset |  Lake Grove  |  Centereach | Selden | Village of the Branch |

Head of the Harbor | St. James  |  Lake Ronkonkoma  |  Ronkonkoma | Smithtown   

Port Jeff  |  Port Jefferson Station  | Terryville  | Nissequogue    |  Old Field  |  Poquott |  Mount Sinai 

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