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CS Fitness is the best place to learn how to achieve and manage a healthy lifestyle, all in a relaxed, friendly and supportive atmosphere. To start your journey with us, try a "Free Trial Class" by clicking the button or scroll down to learn more. 


Coach Cassandra

Commit to Fit

Hey there! I'm Cassandra and I'm your certified personal trainer that specializes in achieving & maintaining a healthy lifestyle. I want you to enjoy your donuts, your birthday cake, and your candy bars without feeling guilty about it.  I want you to feel good on the inside and out.  I believe that when you put the right foods in your body, you'll not only feel amazing, but you'll look amazing.  

Ready to get started?!  Come join the many people who transformed their lives and found an amazing community in #troopCSfit! Cassandra Saindon Fitness is all about helping you reach your goals while keeping things simple.   

 Hope to see you real soon!

Our Services

In Person Classes

If you are local to the Lake Forest, CA area, join us for outdoor in-person classes at the beautiful Sun & Sail Club or at Serrano Creek Park.  

Online Ondemand Classes

Prefer to workout from home?  No problem!  I have a library of 40+ classes to choose from all that you can do from home with minimal to no equipment.

Premium 1-on-1 Program

Want the VIP experience?  Sign up for my Take Back Your Bod program where we'll build lean muscle, shed fat, eat right, and learn to maintain a healthy lifestyle.

Why us?

Health Focused


All Levels Welcome



Class Schedule


My 14 month old didn't sleep well last night and I wanted to cancel, but NOPE! I made a commitment so I showed up anyway


Leslie D.

Cassandra, Thanks for all of your continual motivation!  Because of your guidance and support I've managed to lose 7lbs in 3 weeks! 💪💪💪❤️

Candace W.

Coach Cassandra is not just an excellent cheerleader, but also does all of the work to set up a comprehensive workout routine.

Have a Question?

Reach out!

I'm happy to answer any questions you have.

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©2020 by Cassandra Saindon Fitness.