Cancel

    Open app

    Search

    Crucible Photos

    You might also consider

    Recommended Reviews - Crucible

    Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
    Yelp app icon
    Browse more easily on the app
    Review Feed Illustration

    4 months ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0
    Photo of J E.
    127
    3667
    13129

    5 years ago

    Helpful 1
    Thanks 0
    Love this 1
    Oh no 0

    3 years ago

    Not friendly to uneducated customers. Condescending for no reason. Got my shit and left.

    Helpful 2
    Thanks 0
    Love this 0
    Oh no 1

    9 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    Verify this business for free

    Get access to customer & competitor insights.

    Verify this business

    Valhalla Academy of Martial Arts

    Valhalla Academy of Martial Arts

    5.0(6 reviews)
    6.9 mi

    Valhalla is a phenomenal martial arts academy. I've been there for nearly six months, taking…read morejiu-jitsu and thai boxing, and can't imagine quitting of my own free will .... going there is literally the highlight of my day, every day: I know I'll relax and have fun - and learn something about myself It's really amazing to watch the instructors and students learn and coach each other, great atmosphere: very mature and fun, and respectful; amazing kids program.

    If you're searching for a place where you can learn, grow, and laugh while simultaneously being put…read morein both an armbar and a chokehold by someone twice your age and half your size, look no further than Valhalla Academy of Martial Arts. Where Valhalla lacks in a "No Shoes, No Service" policy, it excels in providing a venue for fresh and seasoned martial arts practitioners of all ages to hone their craft in a plethora of styles, including but not limited to Brazilian Jiu Jitsu, MMA, Kickboxing, and Muay Thai. You'll be hard pressed to find another gym with such a wealth of engaging opportunities under the same roof. What really sets it apart isn't just the exceptional coaching from its founder and resident Black Belt Professor, Coach Andrew; it's the emphasis placed on personal development from all angles. The atmosphere that's been cultivated at Valhalla ensures a healthy and positive environment where everyone involved is engaged and committed to helping each other progress both physically and mentally. Not only that, but the condition of the facility is par-none and always kept clean. As a slight testament to the caliber of Valhalla's curriculum, I've personally garnered a greater sense of confidence, learned countless practical skills, and gained a greater appreciation for cold showers. Although I've only been a student for a relatively short amount of time, I'm certain I'll be here for the long run.

    Photos
    Valhalla Academy of Martial Arts
    Valhalla Academy of Martial Arts
    Valhalla Academy of Martial Arts

    See all

    American Drengr Krav Maga - Learn to combat real-life threats

    American Drengr Krav Maga

    5.0(2 reviews)
    25.6 mi

    Real-world self-defense is CLEARLY a passion for all the instructors here. I appreciate when the…read moreinstructor says that he's not teaching us "THE WAY," he's teaching us "A WAY." Everyone's body and skills are so different, and these instructors fully embrace that. Their goal in Krav Maga is not to teach us pretty kicks and impressive moves - their goal is to make sure we get home to our loved ones safely. It is all about developing your mindset, muscle memory, and instincts so that, when it really counts, you avoid the deer-in-headlights effect. Even as a beginner, I feel like I walk around my community in Manassas with more confidence and awareness and have learned how to reduce my chances of being a victim in the first place. If for some reason you don't feel like you have the time to commit to classes, I HIGHLY recommend you check out their monthly seminars! Women's Self Defense, Edged Weapon Defense, Car Jacking Defense, and the list goes on!! After watching many of the kid's classes, I love what I see! They're teaching kids how to use their voice, how to stand up for themselves and when it is appropriate to take physical action.

    Amazing experience- went for an hour and a half class for moms and daughters. The instructors were…read moreincredible, the atmosphere was friendly and inviting. I left feeling so much more confident in protecting myself. I had so much fun I'm going to sign up for the adult class! Highly recommend for adults and especially kids - the tactics you learn could save your life and it was interactive and super fun great workout on top of it as icing on the cake DEFINITELY at least go once to experience it yourself you won't be disappointed!

    Photos
    American Drengr Krav Maga - Take safety and control into your own hands

    Take safety and control into your own hands

    American Drengr Krav Maga - Our students are a community

    Our students are a community

    American Drengr Krav Maga - Combat training for advanced students allows for more realistic contact in a safe environment

    See all

    Combat training for advanced students allows for more realistic contact in a safe environment

    Kore Self Defense - G1 Gun Defense work

    Kore Self Defense

    5.0(2 reviews)
    45.2 mi

    Awesome program available for kids 4 days weekly, amazing instructors, very friendly, helpful,…read morerespectful and dedicated! Proper training and protective equipment is also available. Thank you for everything you do!

    I visited Kore Krav Maga last year for a week of instructor training, and I was totally impressed…read moreby the way that the McCrackens run their school. First thing I noticed is that everything is clean, which is really important when you're training in close contact with people, and especially if you ever do any training on the ground. Next, I noticed how friendly all of the students and instructors were. The culture of the place is very welcoming. I can be a bit shy at first, so having people go out of their way to say hello and show me around was pretty great. Lastly, I want to mention the huge amount of knowledge the instructors bring to their students. For instance, the lead instructor, Tammy McCracken, is the Director of the US Women's Division for Krav Maga Global, and she's constantly going to seminars and conferences and the like to learn more about how people can defend themselves. They have created an environment where all people, regardless of size/age/ability, can train together and not feel awkward or like they don't belong. The benefits of making this your regular gym can't be understated - fitness, self defense, friendship, empowerment... the list just keeps going. Love this place!

    Photos
    Kore Self Defense - Our Founder, Tammy McCracken, teaching the 1.5 Inside Defense.

    Our Founder, Tammy McCracken, teaching the 1.5 Inside Defense.

    Kore Self Defense - Anti-Kidnapping Class

    Anti-Kidnapping Class

    Kore Self Defense - Every 3rd Monday, Modern Arnis!

    See all

    Every 3rd Monday, Modern Arnis!

    N-Flux - N-Flux Krav Maga photoshoot for Runner's World

    N-Flux

    4.9(24 reviews)
    46.3 miDowntown

    In the past I always struggled to motivate myself to regularly work out, but that completely…read morereversed when I started coming to N-Flux: I just wish I had more hours in the week for more N-Flux. First of all, the classes are challenging and engaging. The instructors do a great job pushing you just the right amount, so as you learn one thing, there is a new technique to improve. If you're like me and get bored at a regular gym, classes at N-Flux are great because you are building up to something and there is more to think about (although I'll admit my brain gets pretty slow by the end of an intense class, so I can't say *much* thinking happens at that point...). The second thing that makes me excited to get out as much as I can is that the community is incredible -- supportive, kind, funny, diverse, interesting. You definitely don't feel inadequate as someone new and inexperienced: more experienced students are always willing and eager to help out. The instructors work hard to cultivate an environment that is welcoming and supportive. So here I am, probably in the best shape of my life after just a few months, and it felt so easy! Well, not the classes, which are hard in the best kind of way, but I would take heading over to N-Flux any day over tv, social media, reorganizing, or browsing funny animal videos on the internet. If you want to learn martial arts, get in shape, and have fun doing it -- look no further, N-Flux is where it's at!

    I came to N-Flux to find a hobby and ended up finding a passion and a home away from home. Yes,…read moreit's a gym, and the new facility in the bottom level of 1722 I Street will blow your mind with all the new equipment and toys (no more stripper poles, just tons of mats, gloves, pads and other goodies). But more importantly, this place is a community. N-Flux has the best instructors and classes you will find anywhere in DC if you're interested in taking Krav Maga, Jiu Jitsu, Boxing, and all sorts of other martial arts and combat sports. Chris and Colleen are the best instructors I've ever seen. They don't just want you to get skills, they teach concepts, conditioning, and character. Part of the training is how to be a good classmate, and experienced students help newer students and welcome new people. As a result, you're not just coming for a workout, you walk away welcomed and encouraged to be the best you can be -in everything. The classes are challenging in the best way, even their Yoga classes (and I hated yoga before I took N-Flux yoga with the amazing Scott and Maicie!). Chris and Colleen are tough and push you to be your best. Since starting, I've lost 25 pounds, gained 25 new friends, and according to my work colleagues, "am the happiest I've ever been." This place is way more than a gym and you won't know what you're missing until you come try it for yourself.

    Photos
    N-Flux - SPARology

    SPARology

    N-Flux - Krav Maga turn in drill

    Krav Maga turn in drill

    N-Flux

    See all

    Crucible - firearmtraining - Updated May 2026

    Loading...
    Loading...
    Loading...