About
California Strong Athletics offers KinderGym, Girls Gymnastics, Boys Gymnastics, Tumbling, Gymnastics Camps, Summer Camps, Spring Break Camp, and Winter Break Camp. KinderGym introduces coordination, balance, listening skills, and social confidence. The tumbling program develops explosive strength and body awareness, and the camps include skill-building, games, themed activities, gymnastics training, obstacle courses, and crafts.
Programs
- KinderGym — 1.5 – 5.5 · Introduces coordination, balance, listening skills, and social confidence in a structured and supportive environment.
- Girls Gymnastics — 5.5 – 14 · Recreational program with structured skill development, discipline, focus, and perseverance.
- Boys Gymnastics — 5.5 – 14 · Recreational program with structured skill development, discipline, focus, and perseverance.
- Tumbling — 5.5 – 16 · Develops explosive strength and body awareness while teaching athletes how to safely push their limits.
- Gymnastics Camps — 5-12 · Full-day camps during school breaks with skill-building, games, and themed activities.
- Summer Camps — 5-12 · Multiple weeks throughout June, July, and August.
- Spring Break Camp — 5-12 · Full-week camp during spring break with daily gymnastics training, obstacle courses, and fun challenges.
- Winter Break Camp — 5-12 · Camp days including gymnastics and crafts during holiday break.
At a glance
- Ages: 1–16 years old
- Facility hours: Mon-Fri 2:00 PM-8:00 PM; Sat 8:00 AM-5:00 PM
About the provider
California Strong Athletics was founded in 2020 in Concord. The leadership team includes Zachary Stevens, Founder. The program states that sports should shape identity, not just performance, and that gymnastics is the tool while character is the goal. It is USAG Certified, uses USAG-trained coaches, and says it has 1,000+ athletes trained, 300+ active members, and 10+ expert coaches. The program serves the Concord community and surrounding communities including Clayton, Walnut Creek, and Pleasant Hill.
20% sibling discount is automatically applied when enrolling 2 or more children. All new families begin with a 30-Day Conditional Trial. The site says the gym is not a drop-in activity center and not a win-at-all-costs environment.
What families say
“We love California Strong Athletics! Their expert coaches are kind and motivating. I can't believe how my daughter's skills have developed over the couple of years she has been here. I recommend it to everyone—especially if your kids actually want to learn gymnastics skills vs just doing obstacle courses.” — Shelby E. Parent, Recreational Program
“My son is absolutely OBSESSED with California Strong! He begs to go every day and can't wait for his next class. The coaches are truly invested in each child's development. It's clear they're not just teaching gymnastics, but building confident athletes. It's been a game-changer for my son's physical and emotional growth!” — Anna K. Parent, Kinder Gym Program
“My daughter has blossomed here. So much fun but with direction. Super personable approach. Kind and fun (!) coaches. The gym itself is well kept with a very nice waiting area for parents. Super, super happy we found this place.” — Ivana S. Parent, Recreational Program
Last updated September 12, 2026.
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