grit + tonic is a boutique reformer Pilates studio in Downtown Monterey built around one simple belief: strength and longevity are created through consistent, intentional movement.

Founded by Arianne Bautista Marsh, grit + tonic offers small-group reformer classes designed to build strength, stability, mobility, and confidence - without the intimidation factor. Expect expert coaching, creative programming, personalized attention, and classes that challenge you in all the right ways.

Whether you’re stepping onto a reformer for the first time or looking for a more athletic Pilates experience, our classes are designed to help you move well, feel strong, and carry that strength into everyday life.

strength. grit. intention.