IT'S YOUR BIRTHDAY!
Ninja Plus Birthday
$399
*includes 10 children
A high-quality party where kids can get the most out of the gym and discover more about gymnastics and Ninja training.
The Gym Will Provide:
- One party host to help guide your experience, so you get the most enjoyment out of our facility.
- One hour of gym time
- Thirty minutes of party room time
- Tables and chairs.
The Party Family Will Provide:
- Party room decorations
- Plates, cups, napkins and Cutlery
- Food, drinks, ice chests, etc.
$20 per additional kid
POPULAR
Ninja Gold Birthday package
$499
*includes 15 children
Our Ninja Gold package, much like our Ninja Plus package and allows for more kids to attend.
The Gym Will Provide:
- Two party hosts to help guide your experience
- One hour of gym time
- Thirty minutes of party room time
- Tables and chairs
The Party Family Will Provide:
- Party room decorations
- Plates, cups, napkins and Cutlery
- Food, drinks, ice chests, etc.
$20 per additional kid
Ninja Extreme
Birthday package
$599
*includes 20 children
Ninja Extreme is for the big party family!
Come one, come all.
The Gym Will Provide:
- Two party hosts to help guide your experience
- One hour of gym time
- Thirty minutes of party room time
- Tables and chairs
The Party Family Will Provide:
- Party room decorations
- Plates, cups, napkins and Cutlery
- Food, drinks, ice chests, etc.
$20 per additional kid
Add-ons
Each party will have add-on options
- 30 minutes extended gym time - $75 additional fee
- Extra coaches- $75 additional fee per coach
- Inflatable bounce house- $100 per inflatable
- An additional $35 is added if guest shows up more than 15 minutes earlier or stays more than 15 minutes past scheduled time. We bill in 15 minutes increments and anytime over will incur an additional $35 fee.
#californiastrong
Follow us on IG @californiastrong
Winter Drop & Shop — Coming Soon!
Give yourself time to finish holiday shopping while your child enjoys a full day of activities at the gym.
Event Details:
Monday, December 22
9:00 AM – 3:00 PM
Ages 5–12
What’s Included:
Gymnastics, games, arts and crafts, pizza, movies, and more — plus a special visit from Santa.
Online registration is now open.
Spots are limited and fill quickly — reserve your child’s place today at California Strong Athletics.
#CaliforniaStrongAthletics #CSAFamily #HolidayEvents #ConcordCA #GymnasticsKids #DropAndShop
Girls’ Gymnastics Tryouts!
We’re so excited to invite young athletes ages 5–10 to try out for our Pre-Team and Level 2 & 3 competitive Girls’ Teams!
Led by Coach Lisa Mitzel, former Stanford University Head Coach and our new Girls Team Department Lead, this is the perfect opportunity for your gymnast to grow in strength, skill, and confidence!
Sunday, Nov 16 | 3:30–5:00 PM
California Strong Athletics
2231 Commerce Ave, Ste F, Concord, CA
$15 per girl / $10 per sibling
Questions? Email Lisa — Lisa@californiastrongathletics.com
#CaliforniaStrongAthletics #GirlsGymnastics #GymnasticsTryouts #StrongerTogetherCommunityForever
Every year we have fun putting on a big event with a haunted house included but let me tell you now, this year is going to be the best Story, with the best characters and the best kid friendly spooks!
Introducing this year’s story line:
🎃 HAUNTED HOUSE ESCAPE ROOM: “The Harvest Curse”
👻 Two Nights of Mystery, Mayhem & Halloween Magic
Step into California Strong Athletics’ Haunted House Escape Room, where every twist tells a story and you become part of the adventure!
This year’s frightful tale begins when a curious Scarecrow leads you through a haunted mansion filled with eerie surprises — a Mad Scientist’s lab, a wicked Witch’s graveyard, and a chaotic Clown carnival. When the Witch demands a sacrifice, you’ll have to make a chilling choice that sets off a chain of spooky consequences you’ll never forget… 🌾🧙♀️🤡
Just when you think you’ve escaped, you’ll find yourself in Apocalypse Land, crossing glowing radioactive barrels toward a spooky cabin where the real mystery begins. Inside, the Mad Scientist is waiting — and he’s ready to show you the true cost of your decisions.
But the story doesn’t end there…
🧩 Day Two – The Redemption Quest
The next night, you return to face the aftermath.
Piece by piece, you’ll search for what was lost and help the Scientist reverse the curse before it’s too late.
Work together, solve the riddles, and restore balance to The Harvest!
We are gearing up for our favorite event! Join us at Cal Strong’s 5th Fright Festival, where we bring the fun in the gym and the spooks in the haunted house!
Comment “Monster” for the link to our Early Bird Special!
#californiastrongathletics #frightfest #frightnight #haunted #halloween #gymnastics #kidsevents
What if your kid grew up seeing challenges as FUN instead of scary? That’s exactly what gymnastics at Cal Strong teaches—because every tumble, flip, and fall is just another chance to grow stronger. Comment ‘Strong’ and we’ll send you a special deal to kickstart their journey.
#californiastrongathletics #gymnastics #girlsgymnastics #youthsports
What if I told you confidence isn’t something you’re born with—it’s something you can train, just like a muscle? That’s why Cal Strong is the Bay’s only 5-star gym, and we’re giving you 30 days to prove it risk-free.
Hit the link in bio or californiastrongathletics.com to sign up. Drop ‘STRONG’ in the comments for an exclusive offer we’ll never post again.
#californiastrongathletics #gymnastics #girlsgymnastics #boysgymnastics #kids #kidsfitness #earlychildhooddevelopment
Master yourself, and the world is full of opportunities.
No excuses — the sooner, the better. Join us now with peace of mind. We’re here to serve as your guides to gymnastics, and if you’re not happy within 30 days, we’ll refund your tuition.
Go to our website to sign up:
👉 californiastrongathletics.com
KARATE CAMP SHOWCASE = SUCCESS 💥
Our Cal Strong Campers worked hard all week and brought the energy to the end of camp showcase!
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From sharp kicks to bold board breaks—this crew crushed it, we are so proud 💚
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Who is ready for Sports Week Ninja Camp??⚽️🏀🏈⚾️🎾🏐
#californiastrongathletics #karatecamp #kidssummercamp #calstrongkids
Too early for Acro? Not if you’re Summer.
This little legend is already showing off her strength—and she can’t even walk yet.
Should we launch a Baby Acro Clinic at Cal Strong? (We’re kinda serious.)
Mind-body connection starts way earlier than you think.
No Baby Acro yet, but our Parent & Child Gymnastics classes are filling fast.
Get your tiny human ahead of the curve. You’ll thank us when they stick the landing at 3.
☀️UNLIMITED SUMMER CLASSES☀️
No more worrying about missed days —join us all summer long with free single-day unlimited access to your favorite classes!
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🗓️June-August
💪Members only-excludes Team Athletes
☎️Call-in required
#UnlimitedSummer #CalStrongSummer #KidsGymnastics #californiastrongathletics💪🏻
New equipment is here!!
We are flipping out over our new uneven bars and balance beam upgrade! 💚💪
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Our girls program just got stronger and they are ready to raise the bar!
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Come train with us and break in the new equipment!
#newequipmentday #strongereveryday #girlsgymnastics #levelup #californiastrongathletics
☀️Summer just got STRONGER! 💪
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Join us for action packed days filled with gymnastics, games, crafts, and new friendships at California Strong Athletics Summer Camps!
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Week One: Karate Week Ninja Camp 🥋
Week Two: Sports Week Ninja Camp🏆
Week Three: All About Gymnastics 🤸♀️
#summercamps2025 #gymnasticscamp #californiastrongathletics #flipintosummer
Shoutout to our girls’ team and their amazing families—you’ve been showing up, working hard, and trusting the process, even when our equipment was limited.
We just purchased two uneven bars and a brand new balance beam for the gym.
We don’t have the space to install everything just yet, but trust—it’s in motion.
This is just the beginning. What’s coming next? You’ll want to be here to see it.
Big things are coming at California Strong Athletics.
That’s a wrap on SPRING SHOWCASE WEEK🔥✨
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We are incredibly proud of all our athletes for their hard work, electric energy and smiles! Keep chasing those dreams — this is just the beginning! 💪
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Thank you to our amazing Cal Strong families for coming out to support all these athletes. We appreciate you all! 💚
#showcaserecap #californiastrongathletics #thankyou
✨Strong. Confident. Fearless.✨
Our Girls Gymnastics classes are all about building skills, strength, and self-confidence — one skill at a time! 💪🤸
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Ages 5.5-12
All skill levels welcome
Learn. Grow. Shine
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Ready to watch your gymnast soar?
#californiastrongathletics #girlswhoflip #gymnastlife #confidencestartshere
Meet Coach Victoria! With a lifetime of experience in the sport and 6+ years of coaching under her belt, Coach Victoria brings energy, passion, and a whole lot of fun to every class!
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Whether it’s teaching a new skill or building confidence in her students, Coach Victoria is all about helping!🤸
#coachhighlight #californiastrongathletics💪🏻 #meettheteam
Tired of rushed classes and missed chances?
We get it — that’s why we do things differently.
We offer the longest gymnastics classes in the Bay Area — because kids need time to actually learn, not just bounce around. Real demos, real understanding, real confidence.
Life gets hectic, so we’ve got you:
2 make-up classes a month and 50% off all added classes after your kick-off membership starts.
This isn’t just gymnastics.
It’s confidence, health, and fun — all built around your life.
The timing won’t ever be perfect.
Let’s do this anyway.
Feeling inspired to try gymnastics? At California Strong Athletics in Concord, our amazing staff is known for being friendly and great with the kids. Our classes, ranging from kids gymnastics to competitive gymnastics, help build confidence and skills in a supportive environment. We cater to all ages, offering both boys gymnastics and fun adult gymnastics classes designed to push your limits and master gymnastic skills in a motivating atmosphere. Whether you're from Concord, Pleasant Hill, or Martinez, come join our family and see the difference. Explore our programs and become a part of our caring community today!
Ever wondered if gymnastics is the right fit for your family? At California Strong Athletics in Concord, we believe in building skills, confidence, and friendships. Whether your child is interested in boys gymnastics or all your kids want to try something new like tumbling classes, we've got the perfect spot for them to shine. We also offer adult gymnastics classes, perfect for learning handstands or backflips with expert coaching. Check out our competitive gymnastics programs where athletes train in a supportive and motivated environment. Join our California Strong family community today and watch athletic growth unfold naturally. Dive into our programs and find the right fit for your needs.
Discover the joy of gymnastics at California Strong Athletics! We offer a range of classes from kids gymnastics to adult gymnastics, all in a supportive, family-like atmosphere. Whether you're in Concord, Pleasant Hill, or Martinez, we have programs that cater to every age including competitive gymnastics and fun tumbling classes that foster teamwork and skill-building. Our experienced coaches are here to help boys and girls alike develop confidence and resilience on their gymnastics journey. Join us at California Strong Athletics to be part of our community. Sign up today and see all that gymnastics has to offer!
We're thrilled to welcome you to California Strong Athletics, where kids and adults alike enjoy learning gymnastics in a friendly atmosphere. Located right in Concord, we cater to everyone from little ones in kinder gym all the way to teens and adults. Whether you're interested in boys gymnastics, girls gymnastics, or tumbling classes, we have something for you. Our team-focused approach ensures personalized growth and skills development for all. Join us today and become part of a community that feels like family. Explore more at our center and find your perfect class.
Imagine a place where both kids and adults can learn amazing gymnastics skills in a fun, supportive environment. Welcome to California Strong Athletics, located right here in Concord! We offer kids gymnastics that help boys and girls flip, tumble, and grow strong together, as shown by our awesome team of young athletes! Adults can join in with specialized adult gymnastics classes every Tuesday evening. Interested in competitive gymnastics? We support each of our athletes at every level towards achieving their own personal bests. Our center is all about fostering growth, confidence, and resilience through gymnastics. Stop by to experience it yourself!
California Strong Athletics is the go-to place for gymnastic enthusiasts in Concord and the surrounding areas. We offer gymnastics classes for both kids and adults, catering to all skill levels. Whether it's our tumbling classes or boys' gymnastics programs, each session is designed to support skill-building and personal growth. At our center, athletes can explore competitive gymnastics options or take it easy with casual workouts. Our dedicated team, led by passionate coaches, ensures each lesson is an engaging and confidence-boosting experience. Ready to join the fun? Explore our programs today and find the perfect class for you or your child!
California Strong Athletics is spreading the love this Valentine’s with some exciting gymnastics activities for everyone this February! Located centrally in Concord, we're excited to welcome kids, teens, and adults from around Concord, Pleasant Hill, and Martinez to discover the joy of gymnastics in a fun, friendly environment. Dive into our vibrant coed tumbling classes or challenge yourself with our adult gymnastics sessions, perfect for building strength and skills. Whether you're young or simply young at heart, there's plenty of room at our Concord gymnastics hub to grow into a stronger, more confident athlete. We warmly invite families ready for an adventurous February to explore all the amazing gymnastics experiences we offer at California Strong Athletics. Discover more about our facilities and join our gymnastics family today!
Step into California Strong Athletics, where gymnastic dreams come alive in Concord. Whether you're interested in kids gymnastics, engaging tumbling classes, or discovering the world of adult gymnastics, our center has something for everyone. Our competitive gymnastics programs nurture budding talent, while boys gymnastics classes offer unique pathways for skill development. It's more than gymnastics here; it's about building confidence and resilience in a family-like atmosphere. Ready to take the first leap? Visit our website for more information and join a community that feels like home.
California Strong Athletics is your go-to spot for gymnastics in the Concord area! We offer kids gymnastics and adult gymnastics classes, perfect for both fun and skill-building. Whether you're interested in tumbling classes or more competitive gymnastics, we've got you covered every step of the way. Both boys gymnastics and girls gymnastics programs help foster not only athletic skills but also personal growth and resilience. Join our community and take the leap into exciting new skills today! Visit our website to find out more and see when you can stop by for a class.
Cal Strong Girls Team! These girls have been working hard in the gym and gearing up for their first ever competition season!
Many of you know, Cal Strong started with a boy’s competitive team. We expanded almost two years ago into our own gym space allowing us to open up to girls gymnastics.
This is a start to a great Team! We have all the support we need and look forward to watching this program flourish.
Our strategy:
Our mission is to build lasting relationships with gymnastics as the tool of influence.
We grow with our Community. As you the gym community grows we invest in that. This attracts loyalty, allows us to focus on quality by taking care of our coaches and keeping our membership costs low.
Join the fastest growing gym in the bay! We have big plans for our Bay Area community!
They say Vol III last year can’t be topped. We’re here to say Vol. IV is going to prove them wrong. Cal Strong Fright Fest gets better every year.
What’s next? 🤨 come find out on October 11th and 12th. More details on our in our link.tree or website.
Escape room haunted house, can you solve the mysteries or is it to spooky to think clearly.
Costume contests, prizes, games, pizza and of course all the best of Cal Strong activities!
Look for PNO or Parents Night Our when enrolling
“Repost”
Another camp week in the books! We had an Ultimate Ninja Experience not only running the best Ninja courses Cal Strong can build but also going to the parkour specialists, @mvmntm, home of true ninjas of parkour.
With a great field trip to finish out our 3rd week of camp we are taking a break for the 4th of July week.
More camps coming up mid-July, we don’t stop until the recipe is perfected so join us for more summer activities.
Comment “Ninja” if you want more details about our camps and programs.
Karate week has made it into the Cal Strong Hall of Fame! Here’s why:
We take our themes serious, if it’s not going to be above average we stay away from it.
Our Aim is to teach with an impact and Karate week was an amazing example of this where we brought in a new Program that allows ourselves to be creative and also invite people in that specialize in the area.
Thank you @sabre_bjj for taking the time to come and teach in our community.
Incorporating this with gymnastics creates a bubble of fantastic pressure and can only burst with excitement and kids walking away with a true and new experience.
This week we are heading to @momentumninjaparkour to test our skills. Join us for another exciting week of Cal Strong Camps. 1/2 days, single days and more.
Comment “Ninja” if you would like more info.
Open Gym is the perfect opportunity to enhance your skills, have access to the entire gym, invite your siblings and friends to try gymnastics, showcase your incredible moves, and have a fantastic Friday with Cal Strong!
Join us this Friday at 7-9pm for another thrilling Open Gym session!
https://app.iclasspro.com/portal/csagymnastics/camps/4
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