The center is an official CrossFit® affiliate. Last checked: 04/07/2025

CrossFit is a registered trademark owned by CrossFit, LLC, which is not affiliated with FitFit United States.

Information about CrossFit® KOA

Globe Ave 1100
07092, Mountainside
+1 908-418-1829

Opening hours

  • Monday: 5:00 AM – 9:15 PM
  • Tuesday: 5:00 AM – 9:15 PM
  • Wednesday: 5:00 AM – 9:15 PM
  • Thursday: 5:00 AM – 9:15 PM
  • Friday: 5:00 AM – 8:15 PM
  • Saturday: 8:00 AM – 12:00 PM
  • Sunday: 10:00 AM – 12:00 PM

Services, Machines and Guided Classes

CrossFit®

CrossFit® KOA: Opinions

5/5 (5 Opinions)
Georgios Zavolas 3 years ago

Fantastic experience: Aside from being an amazing place to reach new heights physically, KOA's best quality is that is strives to create a positive atmosphere for all of its members. There are no egos, and everyone (coaches and fellow athletes included) are as happy for you as they are for themselves. There is a special bond that forms from doing workouts together, that I wouldn't of ever thought was possible. Whether you're a former athlete trying to get back into it, an elite athlete trying to reach the next level, a casual gym goer, or an athletic novice like I was, this is the place for you. Koa will push you to be the best you can, and this is not only physically. They teach you to be mentally tough and to keep striving to improve. There is a mental toughness, determination, and aggression that you need to be able to lift a bar over your head. I found myself unknowingly taking the same confidence into other every day things in my life. You learn that things you never thought were possible, are very possible if you put a plan together and execute it. When I started, I could barely lift the bar over my head, couldn't do a pullup, and was out of breath doing burpees within seconds. However, the community never let me feel down, and kept encouraging me. It would of been very easy to stop, but KOA has an atmosphere where you want to keep getting better, even when you are struggling... I really felt awful physically, but emotionally the support I got far outweighed it.. This pushed me, and others to keep going. I stayed with it, and It's amazing how 3 years later to see how far I've come. I've gone from not even knowing how to squat to squatting nearly 400lbs. I couldn't do a pullup, but now can grab the rings and pull off some muscle ups... Somehow I can even throw up over 150% of my bodyweight over my head... The program just works! If there is a negative, it's that this place has somehow created a magic atmosphere and unbelievable positive energy that makes you think you can do anything if you put a plan together and execute it.. The  confidence I gained from KOA made me believe that I could run the NYC Marathon, and a 70.3 Ironman Race... And somehow I did them both... If not for everything KOA has taught me, then I don't think any of these would of even been thoughts in my wildest dreams... The constant motivation to get better never ends no matter where you are... Right now,  I'm  signed up for a 140.6 Mile Ironman Race in July, and because of KOA I'm crazy enough to know I can do it... Join, and never look back! Update, 8 years later, still all good. Since that time, I've done 5 full distance Ironmans. Definitely the best gym you can find.

Karl Spinner 6 years ago

Fantastic experience: I brought my son to Josh and his team, to get him ready for His first season in high school Lacrosse. Josh and the KOA team paid very careful attention to the teen based class my son started in, to perfect their form and maximize results. My son moved in to the adult classes when Josh thought he was ready. Both my son and I feel that the workouts at KOA, more than prepared my son to play with older, stronger players, when practicing with the varsity. Great job all around!

David Riemenschneider 7 years ago

Fantastic experience: I'm not only new to crossfit, but new to gyms as an whole having spent the better part of my life sedentary. Since day one the coaches at Koa have made my experience exceptional - they have listened to my endless questions and concerns without fail and they consistently give a ton of individual attention throughout every class Not the coaches and other members are really nice, but more than that, everyone there pushes each other to be their best selves I simply love going to the gym, and I look forward to each workout after I've finished my last one, no matter how exhausted I am.

Denise Holan 8 years ago

Fantastic experience: Crossfit KOA is by far the best gym around. As a physical therapist, I appreciate KOA's excellent coaching staff and their dedication to form and technique. It's an amazing place to get a great workout, with great people, pushing yourself to safely achieve optimal athletic results.

Janet Zap 8 years ago

Fantastic experience: I tested out six other Crossfit gyms before finding Koa, and nearly 4 years later, I make it there usually 4-6 times a week. The coaches are wonderful, knowledgable & always willing to help when we have issues with form or movements. There is a great sense of community and this place is where my second family resides! Definitely recommend to join if you live in the area! Also, drop ins are always greeted and warmly welcomed by other members.

Leave your opinion about CrossFit® KOA:

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