Great taekwondo school with excellent instructors and coaches who know how to teach and connect…read morewith students of all ages. The culture is positive, respectful, and intentional. The facility is spacious, well maintained, and in a great location. They emphasize not only taekwondo skills and self-defense, but also discipline, confidence, and character development. Highly recommend for anyone looking for a well-rounded program!!!

I first met the coaches and students of Sparta Taekwondo at local tournaments and was immediately…read moreimpressed by their friendliness. We were invited to an "invite only" multi-gym rumble, where kids sparred in a no-points, no-pressure environment. All the kids from my dojang loved it. My boys also attended a sparring clinic with Coaches Arven and Kris, both world-class level athletes. The individual coaching was top-notch, and my kids thoroughly enjoyed training with them. The dojang is well-kept, and the mat is nicer than standard tournament mats. Parents can watch from the hallway through large windows. The facility includes a snack bar, and the bathrooms are clean. **Pro-tip:** Park in the parking lot near the dojang--it's a shorter walk and usually has more open spots. Overall, Sparta Taekwondo offers an excellent environment for both training and community. Highly recommend!

Quick Review: Ji Sung Taekwondo is far more than a martial…read morearts studio - it is an extraordinary community led by passionate, highly skilled instructors who build confidence, discipline, respect, and leadership in every child. From transformative classes to unforgettable birthday parties, the staff consistently goes above and beyond to create a positive, empowering experience for both children and parents. Detailed Review: Our family has known this taekwondo studio since my brother and I were children. Some of my fondest memories growing up were attending TKD tournaments with my parents and cheering my brother on from the sidelines. Life has certainly evolved since then - my brother and I now have families of our own, and while we may no longer jump five feet in the air to break boards with a single kick (or perhaps we still can!), one thing has remained constant: the exceptional community at Ji Sung Taekwondo. Over the years, much has changed, yet the studio's core values have remained unwavering. Ji Sung Taekwondo continues to cultivate confidence, resilience, discipline, respect, teamwork, cultural appreciation, and outstanding martial arts skills - all while creating an environment where children genuinely enjoy learning. Not every instructor possesses the rare combination of being engaging, encouraging, patient, and deeply invested in their students. Just as classroom teachers vary, martial arts instructors do as well. At Ji Sung, however, you will find highly skilled, compassionate, and remarkably dedicated instructors who consistently go above and beyond for every child. After researching numerous TKD studios, I can confidently say this is the most impressive team I have encountered. As a parent, my goal is to raise confident, respectful, and capable future leaders, and Ji Sung reinforces those qualities beautifully. One of the most impressive things about the instructors at Ji Sung Taekwondo is how intentional and attentive they are with every child. They consistently call students by name to keep them engaged and focused, model positive behavior through clear examples, and offer meaningful praise and encouragement that builds both confidence and accountability in the children. Master Sahar is truly exceptional! She has an extraordinary ability to connect with children and capture their attention through positivity and encouragement. Rather than focusing on negative behavior, she reinforces good choices and models expectations in a way children immediately understand. The students genuinely want to succeed under her guidance, and it is remarkable how quickly they become more attentive, respectful, and confident in her classes. Miss Joy is equally outstanding - attentive, uplifting, and incredibly knowledgeable. She takes the time to ensure students learn proper technique correctly and thoughtfully refines movements with patience and precision. Master Kim leads with expertise, attentiveness, and high standards. He notices everything, maintains strong discipline, and motivates students to perform at their very best while still making them feel supported and encouraged. We deeply appreciate him and the incredible community he has built. We recently hosted a birthday party at Ji Sung Taekwondo, and it was one of the best decisions we could have made. Master Sahar, Miss Joy, and Esther exceeded every expectation and completely impressed both the children and parents in attendance. Within just an hour, the kids learned technique, discipline, and respect - and by the end of the party, each child successfully broke their own wooden board. It was such a meaningful confidence-building experience, and the children left feeling proud, empowered, and excited. When our children attended their first trial class, my four-year-old daughter was extremely shy and hesitant to leave my arms or step onto the mat independently. By the very next class, she confidently ran onto the mat on her own, and at home she now responds to my requests with, "Yes, ma'am!" every single time. It is absolutely adorable and makes me incredibly proud. That transformation is entirely thanks to the warmth, encouragement, and patience shown by Master Sahar and Miss Joy, along with Master Kim's supportive guidance for parents. Thank you to the entire Ji Sung team for the extraordinary energy, heart, and dedication you pour into every class. Your positivity, teamwork, perseverance, and kindness create an environment that truly shapes children for the better. This is far more than a taekwondo studio - it is a community that inspires children to become stronger, more confident, and more respectful versions of themselves.

The instructors spent much time with my son and he just graduated to an orange belt. So proud of…read morehim. Thank you to the the whole Ji Sung team

The pandemic moved this class to Zoom only and the hardcore faithfuls keep going. If cold blustery…read moreweather, long work days at home (or office) or life in general makes it challenging to squeeze in an hour, now you can just join a "meeting" and support a local business. I hope we get to do a few jn-person but Lonnie Louie has a day job. I keep going and use this to supplement other workouts. FIT continues to offer a real and heartwarming vibe.

For cardio kickboxing and just pure kickboxing - this place is legit…read more I got their Groupon deal initially for both kickboxing and cardio kickboxing and loved it ever since. I've stopped doing their kickboxing classes since martial arts wasn't my true interest BUT I absolutely love their cardio kickboxing class. Let me tell you - if you're looking for a high intensity class to KICK YOUR ASS - this is it. No joke - you will sweat like no other and you'll feel great after every class. It's honestly the absolute best workout class I think I've ever taken. It was so great, I bought 15 more classes just for the cardio kickboxing. The cardio kickboxing classes tend to have about 10-15 people (which is what I like). And the instructor always motivates you and tries to get you to push yourself. It's awesome and at a decent price. If you're in the area and looking for a REAL workout, this is it.

I've known Master Kim for almost 20 years now. I was a student at Dae Han when they used to be in…read morethe same shopping center as the Safeway on Contra Costa where Nation's is. I started taekwondo in middle school because I was an angry teenager who had a lot of pent up anger and didn't know how to channel or process my emotions. I stopped shortly before I started high school, because I wanted to play football in high school. Recently, I made the decision that I wanted to come back and earn my black belt and to lose weight. I've struggled with my weight my entire life, and I decided to make some changes, and when I was making the decisions on what my weight loss plan would look like, I decided that I wanted to restart taekwondo as part of my goals. It also helped that in the years between the time I stopped doing taekwondo to when I came back, I would run into Master Kim randomly around the community, from shopping at Costco, having dinner with friends, and whatever else, I always saw Master Kim in and around the community, so it helped us stay in touch If you're a parent with little kids and you're thinking about signing your kids up here, I hope you do. If you're an adult and you're thinking about signing up here, I hope you do. The teens and adults class (middle school and older) is directly after the kids classes. Whenever I hear Master Kim coaching up and encouraging the students, he uses the same gentleness and empowering techniques as 20 years ago. I looked at some of the other reviews from years past, and if you take the time to read some of them, you'll see the same thing from different parents, "My kid couldn't be more excited about coming to Dae Han after school" this, or "My kid's confidence has increased tenfold, a hundredfold," that. Coming back for me has been coming back to the same, positive environment that I left all those years ago, and I'm glad to be back. There's a culture here that Master Kim and Mrs. Kim worked hard to instill, and whether you're a parent or student, you'll see the difference it makes. For the other instructors, they're fantastic. I know and remember Mr. Konstantin from when he was also a student here from my first time here as a middle schooler. Himself, Master Josh, Master Edell, Mr. Nolan, Mr. Hayden, and Ms. Victoria are outstanding teachers who love what they do here. I can't speak to the other black belts, but in my limited interactions with them, they're also good communicators and great stewards and representatives of the values of taekwondo that taekwondo wants to instill in everyone who studies it. I'm glad to be back with Dae Han, and I look forward to seeing where the rest of the journey takes me.

My son is in his second year of the Tiny Tigers class and is thriving. I credit the welcoming and…read morepositive environment the coaches create. The students are incentivised to do their best through consistent recognition of their own successes and those of their peers. It's truly impressive to see a gaggle of five and six year olds line up each class, follow directions and engage with each other and the coaches with respect.

Fourth year training at Dogo. Personalized and structured training, motivating and family oriented…read more Fully equipped for technical and strength training. Thank you Gustavo and Dogo team for the continuous encouragement and learning!! I appreciate everything.

This is coming from someone who had been training muay thai, boxing, krav maga, and jiu jitsu at…read moremultiple gyms around the bay, DOGO is absolutely fantastic. Gustavo is very knowledgeable and knows what he's doing. If you are looking to learn basic or more advanced self defense skills, this is the best gym for you. You really get what you put in with these classes, but you are guaranteed to come out stronger and more prepared. I absolutely recommend DOGO, and refer all my friends here all the time! I love this place and the people who teach and go here. It's a family, not just a gym. No intimidation, no judgement, just support and good vibes. Join now, you won't regret it, trust me.

Seriously the best place ever to send your kids to not only learn TKD but life skills and being a…read moregood person! Josh and Jennifer care about their students and it shows in the way they invest in their students' success both on and off the mat. Although fierce about competition (and winning!), they believe in supporting the whole child and teaching discipline. All three of my children attended there (two are black belts) and learned so much!

My daughter loves that IS Kim's provides disciplined training that doesn't allow for troublemakers…read moreor distractions... but also has the occasional "fun" exercise mixed in. She has made terrific progress over the last two years and we are all very happy we choose this place for her training. Jennifer is a terrific leader and my daughter adores her. If you have a younger kid looking to begin training somewhere that will not only help them to get started--but a place where they will also want to stay and grow for years, I definitely recommend IS Kim's!

We needed a new Summer activity for our daughter and figured a martial arts of some sort would be a…read moregood activity for her. This place was recommended by a friend of ours who take their children here. A month in and we're very happy with it so far and our daughter enjoys it so much that she actually asks us to take her 2 to 3 times a week. The instructors are very good with kids and make the classes fun but also maintain a high level of discipline. She enjoys showing off what she learns and we're excited to see how far she goes with it. This is definitely a family friendly environment and is very welcoming to beginners.

Made me a healthy human being. For better, not worse, at every level of my being, upgraded,…read moredisciplined, strong, spirited.