Great trainers and community. Classes are super fun and everyone cheers each other on!! Super accessible location. Bathroom has grab bars and a roll under sink. All of the trainers can adapt to your level of crossfitting!! read more

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Great community, great and supportive coaches here to achieve all your fitness goals! Friendly welcoming faces and accepting of all fitness levels. read more

CrossFit 1904 - Interval Training Gyms Near Me - San Diego, California

Absolutely would recommend 1904 for anyone looking to get into CrossFit training! I am blown away by the demeanor and commitment to their members and those looking to join. I currently train heavily in martial arts and have just picked up a program that I was hoping to incorporate CrossFit 1904 into. Elise has been super helpful in guiding me to the trail class after signing up and was friendly and engaging! I ended up not being able to make the trial class as I personally bit off more training in my regiment than I can currently chew, I am embarrassingly writing this in a state of insomnia induced over training which is completely my own fault and not in any way tied to 1904. Elise and the 1904 team were super understanding and it has only left me with more desire to come back when I can handle the additional workload! read more

The best people, coaches, space, equipment, parking, and prices! They have a variety of classes throughout the day and have 24/7 access for those with crazy schedules. Love 1904 read more

The best gym, the best workouts, the best people, the best community...period! Been going to this gym since 2014 and it's been the best decision in my life! Come through and check us out! read more

The nicest and most genuine owners and coaches you'll ever meet. All the members are super friendly and supportive. Gym is spacious, clean and well equipped. Lots of parking. Bathrooms and shower available. And did you know CrossFit 1904 also offers space and top level programming and coaching for Olympic weightlifting??? Bonus: it's open 24/7 for all your early morning/late night gainz! read more

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After a few years away from CrossFit, I decided to jump back in at CrossFit 1904 and I'm so glad I did. The members and coaches were friendly and welcoming from the moment I (nervously) walked in. The coaches are knowledgeable and encouraging. The gym has a good amount of space and equipment. The workouts have variations for every skill/ability level. And there is lots of parking! If you're looking for a place to try this type of exercise, look no further! read more

I love 1904! This gym has created some fun memories and even met some cool people along the way! The coaches are always very helpful when you can't do a RX movement. 5:30AM class is the best FYl read more

Kicks my butt every time but good people and good workouts. It's just the best 123456789101112131415161718191 202122232425262728293031323334353637383940 read more

Best CrossFit gym in San Diego. Awesome coaching. Amazing community. You could workout anywhere but it's the people that make this place one of a kind! Would highly recommend!!! read more

The best gym I have been to in the San Diego area. Such a welcoming community with high quality and well maintained equipment. I highly recommend this gym to anyone looking to improve their fitness or their Olympic lifts. read more

1904 is incredible - the people, the workouts, the gym. It's a great facility that's well kept. Also, the coaches are not only amazing in their knowledge, but in how they care for you and your wellbeing. Thank you to all the coaches (shoutout to Coach Chelsea in the morning class) for constantly pushing us to be better AND for creating such a great community between people in the gym. read more

Great coaches and a very supportive learning and fine tuning environment! Great community!

Fantastic community, very experienced coaches, great environment to grow and develop great athleticism mobility and strength. Always very welcoming, friendly, and have great social events, a great place to meet new and like-minded people. read more

Been a member 6 plus years and am 65 years old. Great coaching friendly gym members. A workout and fun. Marty G read more

Great gym and great space! We dropped in on Christmas Eve so had the pleasure of enduring a 12-days-of Christmas WOD. Despite being a packed class, the coach managed the space and athletes very well! The coach ran a great warmup and covered all of the movements before starting (not always the case in my experience). Definitely a positive experience and would go back if we were in San Diego again. read more

I've been coming to CrossFit 1904 since 2014 when it first started as Boombox! Name changed, but the experience has always been the same or actually, keeps improving over the years, which is saying something since it started at a baseline of "great"! The coaches are the BEST, always so patient and encouraging, watching for form and bettering technique...and putting up with my "I'm new" attitude all these years. Everyone who joins the gym has a heart of gold and contributes to the strong sense of community. Love it here and don't think I'll find any place better. They really got me motivated from doing nothing at all with my health journey to actually becoming stronger and making good life decisions so I can be around for myself and my family! Needless to say BESTEST GYM EVERRR!! read more

I was very intimidated to start CrossFit, but this gym made me feel welcomed and comfortable. The coaches are amazing and the community is fantastic. Since I have joined I have been pushed to be a better version and have made some great friends. I would recommend this gym to everyone!! read more

Things you look for in a box: Location. Coaching Knowledge. Good Pricing. Clean Facility. Family. 1904 hits all the marks. They're located right off 163 in an industrial park. Which makes it so easy to get to and not be stuck in crazy traffic. All the coaches are super knowledgeable. Always checking on form and giving tips. Trust me, I needed some help. Price is amazing for everything you get. (I'm in San Francisco now and I wish the price was the same or anywhere even close. Lol.) They even have a physical therapist next door. Movement RX, is attached to 1904. They will help with any injuries, loosening up some tight areas and teaching you about body mechanics. Or they'll just be getting their ass kicked along side you. Facility is always clean, unless I'm giving Ava a rub down. Coach Ray loves that. Sorry. There's also the elusive chalk monster, but we all know who that is. All in all, 1904 is Amazing. Always making you feel at home and comfortable. Whether it's Khangs humor (funny as f*ck), Rays obsession will cleanliness (chalk lid), Mickell's distaste for "the best fan in the world" (it's hot girl!) and best for last, Miss Ava girl. Always greeting you with a wag of the tail and a paw. So if you're looking for a new box or just getting into CrossFit. Come check out Crossfit 1904. You won't be disappointed. read more

Really great community of coaches and members. Haven't really done CrossFit before, started because I had surgery and I haven't been able to get my strength and conditioning back on my own. The coaches are so good at scaling everything down to what I need and everyone is so encouraging! Highly recommend this place especially if you've had an injury, never done this before, and want to be part of a great community! read more

This is the best gym in San Diego by far. I've been going here for years and have dropped into boxes all across SD/USA and nothing comes close. This is truly a family and the owners are stellar people. This gym has been here for me throughout so many stages in my life and I will always be loyal to 1904. I hope if you are reading this and are considering joining that you come on over. It's worth it. read more

Words cant describe my gratitude for 1904. I came in here with a partial tear in my ACL and shoulder impingement and between 1904 and Movement RX I have rehabbed both injuries. Not only did I rehab my injuries I got in the best shape of my life! This is the place you go to get fit and NOT ruin your body doing so. I have belonged to several Crossfit gyms over the years and some can do more harm than good without proper coaching and oversight. Khang and Rey will put you in a program to safely meet your goals and become more healthy and fit! Couldn't recommend them more! read more

Great place to workout. The coaches are super positive and keep things interesting. I've been going steady for 3 months now and love it!

4pm drop in is awesome. The Coaches and members help you feel included and welcomed. The equipment and gym are well maintained they have a nice water dispenser. read more

With the interest of CrossFit at an all time high, it's instrumental that someone does their research before committing to a box; especially in San Diego county where there are over 80 boxes to choose from and more popping up almost every other month. Eric and his partners understand this and they don't try to compete with the box next door or the one 40 miles away, they just do what they do best and that's provide an environment for ALL-PURPOSE fitness for everybody. Whether you're a 50 year old Dad trying to get back into shape to keep up with the Grandkids or a Regionals athlete wanting a place to call home, you've found it. I've seen the incredible support system the box brings and you'll see why we call each other family members. From a Ragnar Relay to a remote CrossFit competition, you'll see, hear, and feel the camaraderie we have for one another. So if you're interested in CrossFit, or a seasoned athlete, swing by and check out BoomBox SD, you'll see what real CrossFit is all about. read more

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The coaches are great. They really take the time to show the movements and help you understand the workouts. You just don't get thrown into anything. After the 6 on ramp classes I was really nervous for my first workout, but the coaches make sure to go over the movements before the workout begins. It's all about form and technique rather than weight & speed. Not only are the coaches friendly and don't make you feel dumb if you have questions or do something wrong. The members old and new are just as great. Everyone cheers each other on. Every day I go in I learn something new and challenge myself. This box has a great positive vibe and I'm happy to be a part of this community. read more

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Boombox is an incredible place! Coach Ray and Coach Vince are incredibly knowledgable, helpful, and motivating. I was super intimidated when I first started crossfit, but both coaches make you feel more than welcomed and are genuinely excited for you to be there. All members make you feel right at home. For the workouts, the coaches are always keeping an eye out on people to ensure form is proper, they aren't pushing you to go heavy or faster (unless your ready) they want to make sure your form is right and you are safe. The WOD's are always challenging, and can be scaled if needed. Believe me, the scaled workout is still tough! The best part is that people are always encouraging you, no matter how fast or slow you go, people are always there to motivate and cheer you on! I took a bit of a crossfit hiatus recently. One day, I was sitting in a globo gym and thought, "I need to get my mind right again. I need to go back to my happy places" First thing that popped into mind was Boombox. I texted Coach Ray right away asking if I could come in the next day to sign up. He was so welcoming, as was all other members! I'm so happy to be a part of this great community! read more

What more can I say about Boombox CrossFit? I am a very busy 40-year-old professional that owns a business and is a new Father. I've always been into athletics but my schedule was no longer allowing me to keep up with my physically active activities. So I was left with the insanely mundane solo trips to 24-hour fitness. I dabbled in some classed at 24 hour fitness. But it never really caught on. By my old business there was a CrossFit gym and I was intrigued. I checked it out but I was turned off by a few things. The price was very high. The people in the gym seemed very clicky, and honestly they were all muscle heads. After doing some research I found Boombox CrossFit. The owner Ray was so warm and welcoming as were all the members. It felt like a little family almost right away. The workouts are never boring as each day feels new. Some days are very focused on strength building, others are focused on flexibility and others are more aerobic. Honestly if feels like a personal training session every class. It's never too crowded but there's always good motivation from your friends in the class. Do not be afraid to join. You will never feel like the odd man out or the out of shape person. You can grow at your own pace right next to the best athletes in the gym. The gym has a shower so I go on my lunch break every day. Another awesome thing about this CrossFit gym is it is so conveniently located. It's in Kearny Mesa right in the heart of San Diego near the 52, 163 and 15. If you are even considering a gym membership like CrossFit, Circuit Training, Gym Classes etc you would be a fool not to check out Boombox Crossfit in Kearny Mesa. read more

I was looking for another box to call home. I dropped in a couple of other local boxes and none of them felt right until I stepped in to Boombox CFSD! The owners and coaches did not give me a script on crossfit, why I should join there box and the rest of the BS I heard from the other boxes. They leave it up to the athlete to decide if this is the place for them without any hard selling point. Coach Ray is probably one of the best coaches that I have trained under. He conducts his classes very well and thoroughly paying attention not only to the new comers but also the veterans - which is something I really appreciated. I felt that I was lost and forgotten at my old box to the many new comers. Even though I've been doing this for a couple of years now, I'm far from a games athlete but am always needing feedback, critique and new ways to improve myself as an athlete - which is something I gain here. The community/family here is one of the most inviting, welcoming and nicest I have ever met. They are what makes this box. There is a mix of beginners to some beasts that all know each other no matter what level you are at. They are all down to help with anything. I gave up a 10 min drive and charter membership to go to a place that has quality coaches and amazing members with no regrets! read more

CrossFit 1904 is awesome! The staff very knowledgeable, professional and friendly. I was new to cross fit and they were very patient with me making sure that I was able to do the movements safety and correctly. read more

Best CrossFit gym in San Diego! Great leadership, a lot of motivation, great fit for both: a beginner and an experienced fitness enthusiast! Thank you for what you do guys! read more

Me and my boyfriend did a drop in at this gym. I don't do CrossFit, I do triathlons and more body weight excessive, but my boyfriend does CrossFit and wanted to do the open work out. He loved it! And so did I. Ray and his team are so nice and welcoming! They made us feel like we where part of the family! The gym is clean and the equipment was well kept! I plan on signing up and starting CrossFit as soon as I love to the area! Thanks CrossFit 1904! read more

2nd time into Boombox crossfit (drop in). Awesome experience...again. Great coaching, good athletes, super friendly. If you are looking for a CF gym, i can recommend with 100% confidence. Strongest recommend. Ken read more

Top notch facility!!! I'm here in San Diego visiting from the east coast and when I dropped by to ask about dropping in for some classes during my stay, I was immediately received with a smile and warm welcome by the staff. Ray, the owner walked over from what he was doing to greet me and was super nice and accommodating. Dropped in for my first class with them and was not disappointed. Coach Vince was awesome. In one class he gave me tips on my lifting form that made a huge difference and really boosted my confidence! The other Cross fitters and staff rooted us on the entire workout. This was an extremely positive experience and since I will be visiting SD frequently, I've found my Cross Fit home away from home. Thanks to Ray, Vince and everyone! I highly recommend this Cross Fit family and box!!! read more

CrossFit 1904 made it so easy to adjust to San Diego after moving from the Bay Area. My husband and I tried out different boxes within the area and CrossFit 1904 stood out to the both of us primarily because of its awesome community. People from all levels of fitness come to the box to put in work and to cheer each on. Whether you're new to the game or a seasoned CrossFit athlete, I can assure you, you'll find yourself "at home" at CrossFit 1904. read more

Fantastic group of people and a great training program. If you want high energy and people of all levels giving their workout all they have while encouraging everyone else around them to do the same, this is the place for you. I'll definitely be coming back when I'm in town. Thanks for allowing my me to drop in and be part of your crew for a day! It was exactly what I needed! read more

This is hands down the best box in San Diego. Coach Ray and all the other coaches really promote such a positive vibe and just all around great environment. They are very attentive to you and really makes it seem like they care about you and your improvement. I've made quite a bit of friends here just from working out and having a great time while doing it. Their programming here is not your normal CrossFit programming. We do a strength portion and then a traditional CrossFit workout which is great because you are constantly getting stronger, hitting PRs, but still getting that lung burning CrossFit workout at the end that we all love. If you are in the SD area and are looking to improve your overall health, definitely check out 1904. I promise you won't regret it. read more

I had a very bad experience here. They profess to be about community but I've never felt like more of an outsider. The facility is nice but the owners are very messy and unprofessional when it comes to handling money. My advice is to look out for yourself or you might get cheated. read more

This place is the best! I am relatively new to CrossFit and to say I was intimidated to try it would be an understatement. Six months ago I decided enough was enough though, and I was ready to try. From day one the coaches and the other members were nothing but supportive. These are good people who genuinely want you to see you succeed. The programming is challenging for athletes of all skill levels but it can be scaled so that anyone can do it. The focus here is on form, not on flinging as much weight as you can as fast as you can. The coaches here would rather see you miss over and over trying to get it right than see you do it wrong once. In my opinion there's not much more you could ask for in a box. read more

I'm a big guy with bad knees and totally misjudged what Crossfit was. Couldn't be happier with joining Boombox! I've been a member for 3 months now, and the coaches have been nothing less than spectacular with being patient and teaching me the proper way to do the lifts and exercises necessary for whatever workout we're doing that day. They're great with scaling down certain workouts to best fit my ability. They'll never have you do more than can do. The other members there are very encouraging and never judge you. I'm really enjoying my time at Boombox! Nothing less than 5 stars in my book. read more