Portland, Maine Martial Arts & Self Defense

Discovery Martial Arts (Hakken Budo Ninjitsu) is an international martial arts organization that aims to promote self improvement by training students in effective self defense methods rooted in the art of ninjitsu. We offer may different class types to work with people of all ages and backgrounds, including self defense, fitness and yoga, and martial arts workshops and seminars. We look to serve the Greater Portland community and beyond.

Our school boasts an impressive staff, and we pride ourselves in the personal approach our staff takes in helping students make martial arts work for them. At Discovery, students can expect effective, realistic self defense training, tailored coaching, and an enthusiastic and supportive community.

***We recently had the pleasure of running a corporate self defense seminar for 19 Oaks Marketing in Portland, and they wrote an article about it! Check it out HERE***

Whether your goal is to learn self defense strategies, get fit, or simply have fun with great people, our school is the place to be. To learn more about specific classes that we have to offer, check out our classes page, and learn how you can sign up for a free trial today!

If you are a parent interested in martial arts lessons for your young child, click below to find out about our free trial memberships!

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Group Training

We do provide martial arts and self defense workshops and seminars for groups and organizations. We will provide free consultation to help you build an engaging, informative, and effective martial arts workshop for your group! If you are interested in creating a special event for your youth group, click HEREFor an adult or corporate event, click HERE.

Senior Girl Scout Troop 106 women's self defense workshop

Senior Girl Scout Troop 106. Effective self defense for teens!


19 Oaks Marketing. An engaging corporate event!

 Comments 3 comments

  • Troy DeRoche says:

    I was wondering if you offer individual training and how much it would cost. I would love to train but am afraid I won’t be able to make the times offered. Thank you for your time.

  • Michael Mercer says:

    Hi Zach, a mutual friend Mike Gibbons thought I should contact you as you would be a good fit in what I am looking for. My name is Michael Mercer, a retired police officer now hosting a radio show called Not On Our Watch produced and airing locally in Maine and available on the internet as a podcast. I am looking for like minded businesses in our communities to partner with me as sponsors on my radio show. This is a great opportunity for businesses that get involved with the show because of the very personal and real crime prevention and safety issues I address. Please take a look at my website http://www.notonourwatch24.com to get a better idea of what I am doing and learn how you can get involved with me and serve our communities better. I look forward to talking with you.

    Stay Safe,
    Michael Mercer
    Not On Our Watch Radio/TV
    President of the Maine Association of Police Retirees

  • Diane Mckellar says:

    I am writing for Donald Heath. Donald did belong to this Dojo in 2009. He would like to join again. Could we please have the hours of operation and what type of classes are available. Also the cost of each class. Thank You and Have a nice day

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