BodyRok Mill Valley
Fridays · Reformer
5:30 · 6:30 · 10:30 AM
October 2 & 9: 10:30 AM replaces 7:30 AM.
Regular Fridays: 5:30, 6:30 & 7:30 AM.
PRIVATE PILATES · MILL VALLEY
Private Pilates,
thoughtfully yours.
“I believe the best Pilates sessions meet you where you are, then give you room to surprise yourself.”
One-on-one Pilates shaped around your body and your goals, with thoughtful guidance in every 45-minute session.
STUDIO CLASSES
Pilates with me.
MuseBody Collective
Tuesdays & Thursdays · Hot Pilates Flow
9:00 AM
Your weekly heated mat flow.
Book at Muse01 / PRIVATE PILATES
Your practice, your way.
Precise, personal movement with room to challenge yourself. Start with the session that suits you.
Private Reformer
One-on-one reformer Pilates with programming customized to your goals and experience level. Expect a full-body session focused on strength, stability, mobility, and control.
Private Mat
Heated Studio
One-on-one mat Pilates in a private studio with near-infrared (NIR) heat. Using bodyweight and props such as weights, bands, and a Pilates ball, we’ll build strength, mobility, and control through intentional, athletic movement.
Private Mat Pilates
At Home
Mat Pilates that comes to you. I’ll bring the programming and portable props for a personalized full-body session in the comfort and privacy of your home.
Duet
A private session for two on the reformer or in the heated mat studio, customized to both of you. Perfect for partners, friends, or family who want to move together.
Private Small Group
Your own private heated mat or reformer Pilates class, customized for your group. Perfect for friends, celebrations, weekends away, or simply getting your favorite people together to move.
Studio and travel availability vary by location. Studio fees, if applicable, are separate.
FIND YOUR FIT
Which session feels like you?
Reformer
Adjustable spring resistance, support, and variety. For those who enjoy equipment and a challenge shaped around their strength, mobility, and experience.
Supported. Challenged. Connected.
Heated mat
Intentional movement, music, and warmth. For those who enjoy a flowing, athletic session with bodyweight and props, and feel comfortable exercising in heat.
Warmth. Energy. Flow.
Mat at home
Focused movement in your own space, without added heat. For those who value convenience, privacy, and a practice they can carry into everyday life.
Strength. Control. Your own rhythm.
Your starting point matters.
These are starting points, not fixed categories. Your goals, comfort, and movement history guide the choice.
Not sure where to start? Let’s talk.
Your studio and equipment will be confirmed with you before your session.
02 / THE EXPERIENCE
In capable hands.
Strong in your body.
Attentive.
Your goals and how you move guide the session. The programming evolves with you.
Athletic.
Rooted in Pilates principles, with a challenge tailored to your level.
Considered.
Thoughtful cueing, clear progression, and details arranged directly with you.
MEET YOUR INSTRUCTOR
Mary
Arenson.
Movement with precision, warmth, and a point of view.
I’m a Marin County–based movement instructor with a background in ballet and experience teaching Pilates and barre. I currently teach at BodyRok in Mill Valley and Muse Body Collective, where I lead heated mat Pilates. My private sessions bring that range together: Pilates fundamentals, athletic challenge, careful cueing, and programming shaped around you.
Whether we’re working on a reformer, moving in a heated studio, or meeting at home, my goal is for you to leave feeling stronger, more connected, and confident in what your body can do.
Request a sessionCLIENT WORDS
The experience,
in their words.
Kind words from clients.
“Mary notices the small things. She knows when to adjust a movement and when to push me a little further. I leave feeling stronger and more connected to my body.”
“Mary’s classes are challenging in the best way. Her instructions are clear, her playlists always set the tone, and she makes everyone feel comfortable while still making us work.”
“Mary brings real attention to how you move. The session felt tailored to me, with enough challenge to make me want to come back.”
03 / REQUEST A SESSION
Find a time
that works for you.
Booking requests are open now for sessions beginning October 6, 2026. Choose your session and a preferred time. I’ll personally confirm the appointment and share location and arrival details.
Times shown are preferences for a request, subject to my confirmation.
YOUR PREFERRED SESSIONPacific time
2. Choose a preferred day
3. Choose a preferred start time 45-minute session
This prepares a message for you to send. Your session is confirmed only after Mary replies.
04 / GET IN TOUCH
Let's talk
movement.
Have a question or want to explore a private session? Send me a note and I’ll be in touch.