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BCMF Calstrong

BCMF Calstrong's Story

What started as boot camps in the park became the high-quality, full-service gym experience offered by BCMF Calstrong today. We had humble beginnings, training with bands, mats, and dumbbells. Gradually, we added more equipment to support the heart and determination of the BCMF Calstrong community.

Our gym now offers HIIT classes, strength training, nutritional guidance, and much more to help you make the most of your fitness journey. We’re here to help you expand your health and wellness focus alongside trainers committed to helping you reach your goals.

Hard Work

We provide support and guidance to help you dig deep and put in the effort.


It’s easy to skip workouts. Form relationships that will keep you coming back.


Results matter. to you and us! We live for the moments when clients hit milestones.

About Maria Callahan

In 2012, Maria Callahan was leading group fitness classes in a park. Now, she’s offering fitness training in an 8,000-square-foot facility in Trinity Fl where everyone is welcome. Maria earned her strength and conditioning certification, created a scholarship for young athletes, and has been deemed one of the best gym owners in Pasco County.

As BCMF Calstrong expands, Maria has recruited additional coaches to help more people in the community get fit, strong, and healthy. Maria’s dedication to training and fitness has taken her from modest beginnings to living the life she’s always wanted, and she can help you do the same on your fitness journey.

Calstrong Mission

Our mission is to create a fitness space where all members feel safe, valued, and supported. Community involvement and a willingness to help have turned a gym into a welcoming space for everyone to focus on their fitness goals together.

Trainers, staff and gym members all embrace the Calstrong name and this definition of its meaning: an indestructible force of physical and mental strength. With trusted trainers, a family-oriented experience, and programs that get results, BCMF Calstrong isn’t just a place to work out—we are #MoreThanAGym.

Self-care is about giving the world the best of you, not what’s left of you

— Marissa Palmer

Gym Features

Give your workout more variety than ever with our equipment.

  • Lockers
  • Childcare
  • Water Fountain
  • Supplements
  • 4000+ SQ FT
  • Collective Shopping
  • Beverages
  • Walk-Ins Welcome
  • Fans
  • Large Bay Doors
  • Towels Available
  • Dumbbells, Kettlebells, etc
  • Rowers & Treadmills
  • Assault Bikes
  • Sleds