Fitness & Gyms in Tarzana, CA

“This place is excellent, I've been going here for a year, everyday a new workout, I don't need to think about anything. You can come in at any time during their open hours hop right in and start working out, no need to show up on time for a class time. Literally zero time spent waiting for equipment.

I can get my workouts done in about 30 minutes and feel very sore”

“The best gym I have ever been to in the last 50 years all over the world. The owner, Colin, is magnificent, very personable, has an outstanding personality and is finding suitable exercises for my condition and I believe for all other individual clients. Being at the facility with Colin feels like my second home. I cannot find better wording to describe both the owner and facility.”

“I joined Kaiju MMA a year ago. Best decision I have ever made. Being a dad of five kids, and having the opportunity to go to MMA practice weekly is an amazing outlet. Working three jobs, and taking care of my kids can be a lot, but going to MMA during the week is a great way to decompress. I did karate for eight years as a teenager and into adulthood. It had been about 13 years since I last trained. Going back and training in a combat sport is the greatest feeling I've had in a long time. I highly recommend more parents sign up. It helps keep the stress down and prepares you for real life situations. I don't want to be with my children and someone tries something. As a parent, it is mandatory that you know how to defend yourself and your children. SIGN UP. You won't regret it 💯”

“Tarzana location! I love this gym! I come for the high intensity classes. The instructors are motivating without being pushy. I like that there are classes for bag boxing and circuit training.”

“Truly nothing I write can capture the love and admiration I have for this place. Interval Strong has been my second home for the last 12 years. I’ve trained here consistently through pregnancies, postpartum and now even with my kids who honestly think this gym is the most fun place to go with me.

What makes this gym so special is the perfect blend of professionalism, warmth and community. Roy and Maytal run this place with a level of passion, expertise and care that you just don’t find anywhere else. The coaching is top notch, knowledgeable, attentive and always focused on proper form, safety and long term results.

The workouts are the perfect mix of fun and challenging. You leave every session feeling stronger, accomplished, and proud of yourself. No two workouts are the same and the constant variety keeps you excited to show up. Even on the toughest days the energy in the room pushes you further than you thought possible.

And the community is truly something special. The members are like family, supportive, uplifting, and genuinely invested in each other’s success. Whether it is celebrating milestones, motivating each other during a tough workout, or just sharing laughs, you always feel surrounded by people who care.

Interval Strong is not just a gym. It is a place that helps you grow physically, mentally, and emotionally. Thank you Roy, Maytal and Livnat for creating a home where we can challenge ourselves, have fun, and feel supported every step of the way. You guys are the best. 💛”

“Teresa was amazing person , the costumers services is great . I will definitely recommend this place . Everyone are kind. The place is super clean . My daughter enjoyed.”

“I've worked with a lot of trainers over the years, but this gym has been a completely different experience. My trainer really takes the time to track my progress in detail breaking down my protein, fat, and calories goals to ensure I am building adequate muscle.
It's such a relief knowing that they're always adjusting things right away so I continue seeing progress. I am so grateful for the personalization and for all the care and attention they put in.”

“This is by far my favorite gym location. It’s always clean, the equipment is modern and well-maintained, and the staff is friendly and professional. The atmosphere is motivating, and everything is organized perfectly. The only things missing are a sauna and a swimming pool—if it had those, it would be absolutely perfect. Highly recommend!”