CrossFit Sun

CrossFit Sun

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We are more than health and fitness. We focus on changing lives!

08/30/2026

ARE YOU TRAINING TO COMPETE — OR TRAINING FOR LIFE? 🔥

Somewhere along the way, fitness AND nutrition got complicated.

🏃 Running programs make you a better runner.
🏋️ Powerlifting makes you stronger.
🏅 Hyrox makes you better at Hyrox.
🏋️‍♂️ Weightlifting makes you better at lifting.

And there’s nothing wrong with that.

Those programs are designed to help you get really good at something.

CrossFit is different.

CrossFit is about being fit and capable for whatever LIFE throws at you.

We don’t need you to be the best runner.
The strongest lifter.
The best gymnast.
Or the king of intervals.

We want you to be pretty damn good at ALL OF IT. 💪

And nutrition? We’ve complicated the hell out of that too. 😂

Macros. Supplements. Diet trends. Optimization.

CrossFit started with something much simpler:

🥩🥦 Eat meat and vegetables, nuts and seeds, some fruit, little starch and no sugar.

Training was simple too.

Lift. Run. Jump. Row. Swim.
Master your bodyweight.
Train hard. Mix it up. Learn new sports.

Build capacity EVERYWHERE.

Just doing HIIT or functional movements doesn’t make something CrossFit.

There’s a methodology behind it.

And amazingly, it was summed up in about 100 words.

At CrossFit Sun, we’re not looking for another way to complicate fitness.

🔥 WE’RE BRINGING CROSSFIT BACK.

Back to the methodology.
Back to the basics.
Back to being ready for anything.

We’re not training for one event.
We’re training for LIFE. ☀️

08/30/2026

CrossFit got you REALLY fit… but somewhere along the way, you got hurt?

Maybe you quit.

Maybe you’re still training, but you’re gun-shy about pushing the way you used to.

Maybe you’ve accepted that your fittest days are behind you.

We don’t think they have to be.

You already know CrossFit works.

You remember the workouts. The challenge. The energy. The camaraderie. The feeling of being really freaking fit.

After 16+ years of coaching, we believe we’ve found a better way to bring that feeling back — while training smarter for longevity.

Train hard again.

Enjoy the challenge again.

Be part of a community again.

And learn how to understand and address the movement issues that have been holding you back.

The goal isn’t to get you back to how fit you USED to be.

It’s to see if we can make you the fittest you’ve ever been — and keep you there.

If an old injury made you quit CrossFit, or you’re still training but afraid to turn the intensity back on…

You’re exactly who we want to talk to.

Send our owner Mark Sun a DM.
He’s been around CrossFit for a LONG TIME and would love to chat with you.

We’re Bringing CrossFit Back. The Methodology works! We just learned how to master the mechanics part.

Old-School Intensity.
Evolved Coaching.

08/22/2026

🚨 INTRODUCING TEENFIT 🚨

☀️ This summer’s Student Program has been awesome. We’ve loved seeing so many teens in the gym learning how to train, getting stronger, and building confidence.

So we asked ourselves: Why stop when summer ends? 🤔

Coach Leslie is evolving FunFit Teens into TEENFIT—and we’re changing the traditional teen fitness model.

🧠 LEARN + PRACTICE 💪

Most teen programs meet once or twice a week at specific times. But between school, sports, homework, and everything else, that schedule doesn’t work for everyone.

TeenFit does.

For just $99/month, teens get:

🏋️ Unlimited access to regular CrossFit classes

🔥 Saturday Barbell Class

🎯 TeenFit coached session every Monday at 5 p.m.

🧠 Coaching on proper technique, mechanics, strength, and movement

🤝 A supportive community to practice with throughout the week

Monday is where they LEARN.

The rest of the week is where they PRACTICE.

We’re keeping TeenFit affordable because our goal isn’t to create an exclusive program for a handful of kids. We want as many teens as possible to build a healthy relationship with fitness that lasts long after high school.

💰 $99/month. Unlimited classes. Real coaching. Real community.

📩 Contact Coach Leslie at Leslie | Moms Strength Coach to get your teen signed up!

Know a teen who could benefit? Tag their parents below! 👇

Photos from CrossFit Sun's post 08/18/2026

Community isn’t everyone being the same.

It’s different ages, backgrounds, goals, abilities, and walks of life—all training under one roof.

It’s people supporting each other, pushing each other, laughing together, and genuinely enjoying being around one another.

At CrossFit Sun, you might train through MomFit, TeenFit, Strong Start, Personal Training, or Sport Performance Coaching—but you’re still part of one big community.

Different programs. Different goals. One home.

CrossFit Sun has been bringing good people together for more than 16 years—and that doesn’t happen by accident.

Contact us and come experience why this community has lasted. ☀️

Photos from CrossFit Sun's post 08/14/2026

Come try it out!

It’s about learning the proper form and technique of the lifts vs competing.

No matter what age or what experience level, everyone can have fun learning barbell lifts!

Leslie | Moms Strength Coach Mark Sun

08/11/2026

Big 5PM class. Barbells out. Coach Leslie on the floor. 🔥

We’re in the middle of our Barbell Cycle—and honestly, these are some of the most fun lifts we teach.

Many HIIT and boot camp-style classes skip the barbell altogether. We’ve spent over 16 years teaching people how to lift safely, confidently, and with proper technique.

You don’t need experience. You just need to show up ready to learn.

Come try a class at CrossFit Sun! 💪☀️

Leslie | Moms Strength Coach

08/01/2026

Barbell Club is one of the biggest values included with your CrossFit Sun membership.

With two coaches— Leslie | Moms Strength Coach and Mark Sun —we’re able to coach Powerlifting and Olympic Weightlifting in the same 90-minute session. Whether your goal is to build a bigger squat, bench, and deadlift or learn the sn**ch and clean & jerk, you’ll get coaching specific to your path.

This isn’t just another workout. It’s 90 minutes dedicated to barbell technique, mechanics, movement analysis, and preparing for our lifting events. The coaching alone is worth the membership.

Never touched a barbell before? Perfect.
Been lifting for years? We’ll help refine your technique.

The best part? You’ll be surrounded by a supportive community that loves learning, cheering each other on, and having a lot of laughs along the way.

Come learn to lift. Get stronger. Build confidence. Have fun.

06/30/2026

Happy Birthday Ernest! 60 Years Young!

06/28/2026

One of our most popular classes for a reason. 💪

Our Barbell Class is all about learning proper technique, mechanics, and confidence with the barbell in a fun, supportive environment.

Whether you’re brand new, an experienced lifter, a student, or a parent, this class is for you. Great coaching, great people, and skills that carry over into everything you do.

Coach TK always keeps the learning fun while making sure everyone moves safely and efficiently. Come see why this has become a favorite at CrossFit Sun! 🏋️

Takondwa Kakusa

Photos from CrossFit Sun's post 06/26/2026

🚶‍♂️ 500 Miles. One Goal. Countless Steps.

Today, Bob reached Santiago de Compostela, completing the legendary 500-mile Camino de Santiago across Spain! 🙌🇪🇸

What makes this even more special is that while Bob has been walking across Spain, Mary has been holding down the fort at our 7 AM class, giving us daily updates and making sure every one of Bob’s steps counted in our Summer Steps Challenge. ❤️

This is exactly what our community is about.

Fitness isn’t just about getting better at workouts. It’s about preparing yourself for the adventures, challenges, and dreams that life throws your way.

A 500-mile pilgrimage.
A hike with a new trail family.
Creating memories that last a lifetime.

That’s what your fitness is for.

Congratulations, Bob! We’re incredibly proud of you and can’t wait to hear all the stories when you’re back.

Now… let’s see how many steps everyone else can rack up before the challenge is over! 👣💪

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Location

Telephone

Address


12245 World Trade Drive, Ste K
San Diego, CA
92128

Opening Hours

Monday 5am - 1pm
4pm - 8pm
Tuesday 5am - 1pm
4pm - 8pm
Wednesday 5am - 1pm
4pm - 8pm
Thursday 5am - 1pm
4pm - 8pm
Friday 5am - 1pm
4pm - 8pm
Saturday 8am - 11am