SONOMA'S PREMIER ATHLETIC EXPERIENCE.
Join Bear Flag Athletic Club for empowering CrossFit, Hyrox, and functional training built for every level.
Come train with us
Join Bear Flag Athletic Club for empowering CrossFit, Hyrox, and functional training built for every level.
Come train with us

No matter where you start your fitness journey, you will be pushed to become a better version of yourself.
Expert trainers scale every workout for true beginners, seasoned athletes, and everyone in between.
We make it easy for anyone with a hectic life to find time to workout.
Find a Fitness Routine that Works for You
We believe fitness should feel empowering, never intimidating. Bear Flag Athletic Club stands out for our personalized coaching, inclusive mindset, and a community-first approach that makes everyone feel at home—even those brand new to CrossFit or Hyrox.
I've never done CrossFit before — can I still join?
Absolutely. Every level and every pace is welcome here — our coaches scale every workout to where you're starting from, not where you think you should be.
What should I bring to my first class?
Something for water and a willingness to work hard.
What if I'm not 'in shape' yet?
That's exactly who we built this for — progress over perfection is one of our core values. Community before achievement, always.
Does Bear Flag Athletic Club have a members-only app?
Yes, all active members get access to our exclusive app for class scheduling and tracking progress.
Is the atmosphere supportive and non-intimidating?
We pride ourselves on delivering the most inclusive, community-focused fitness experience in Sonoma California.
What's the difference between your CrossFit and HYROX programs?
CrossFit classes build broad, all-around fitness through varied functional movements, while our HyROX program (launching September) is built around race-pace training for the HyROX competition circuit — running combined with functional stations.
Are Drop Ins available at Bear Flag Athletic Club?
Yes, we welcome CrossFit drop-ins and experienced athletes in Sonoma. Reserve your spot online and join a class.
Can I try both Hyrox and CrossFit programs as part of my membership?
Yes, members can participate in both class types depending on the schedule and their goals.