About Our Studio
Opal Wellness Studio is a boutique Pilates and wellness studio located at 16 S. Haddon Avenue in the heart of historic downtown Haddonfield, New Jersey.
Our mission is to instruct and inspire all people to become best version of themselves through classical Pilates and wellness coaching.
Our Instructors
Sue McCarroll
Studio Owner, Pilates Instructor, Teacher Trainer, Wellness Coach
Sue earned her 600-hour comprehensive Pilates instructor certification through Power Pilates and the Pilates Method Alliance, and became a certified health and wellness coach through the Institute of Integrative Nutrition.
Sue believes Pilates is for all people and all bodies. She has undergone specialized training in Pilates for injury rehabilitation, prenatal and postnatal Pilates, and Pilates for breast cancer patients and survivors. She is certified in the Jill Hinson Method for Breast Cancer and is an affiliate with Core Compassion Project, which provides Pilates scholarships to individuals with breast cancer and survivors.
In addition to her teaching, Sue developed a Pilates Teacher Training Program designed to mentor and equip the next generation of instructors. Her program blends classical Pilates foundations with modern applications, emphasizing inclusivity, precision, and the adaptability of the method to meet every body’s needs. Through this training, Sue guides aspiring teachers to deepen their personal practice while gaining the skills and confidence to share Pilates with others.
Sue has a background in professional dance and dance instruction, and holds degrees in dance, nutrition and education from Rutgers University. She lives in Haddonfield, New Jersey, with her husband, three sons, and pup.
Mari Bartram
Pilates Instructor
Pilates came into Mari’s life during a time of change and transition and quickly became a consistent and grounding force. It seemed almost fortuitous that her true calling was to guide others on their own path to wellness and inner strength through Pilates.
As someone who has always prioritized movement and wellness, Mari understands the importance of staying active as we age. And that’s what makes Pilates so special—it’s designed for every body, regardless of age or fitness level.
In addition to teaching, Mari also serves as Studio Manager, helping ensure that every client’s experience is welcoming, supportive, and seamless—from the moment they walk through the door to the time they leave feeling stronger and more centered. Her ability to balance organization with care allows the studio to thrive as both a professional and compassionate space.
Mari has a deep empathy for beginners; she relates to the challenges and apprehensions newcomers may face and is passionate about guiding her clients to be their best selves.
Meghan Marshall
Pilates & Yoga Instructor
Meghan has been teaching Ashtanga yoga since 2008. She runs a morning Mysore program in South Philly and teaches evening and weekend Ashtanga classes at Opal. For years, yoga was her absolute favorite thing—until she discovered Pilates. Now, she’s passionate about both!
Pilates has completely transformed Meghan’s yoga practice, helping her identify movement patterns and build a stronger core. She loves sharing these insights with others, blending her expertise in both disciplines to support students in moving with strength and ease.
When she’s not teaching, Meghan is busy trying to survive life as a mom to four tweenage girls. For her, both Yoga and Pilates are more than just movement practices; they’re essential tools for navigating life with resilience and grace.
Catherine Kennedy
Pilates Instructor
Catherine joins Opal Wellness Studio after spending the past decade living and working in the New York City area.
Her goal as a teacher is to help people find peace and confidence in their bodies through Pilates. She’s especially passionate about introducing Pilates to those who have yet to experience its powerful impact on overall well-being.
Catherine holds a comprehensive Pilates certification from Gramercy Pilates, along with a Mat and Anatomy certification from New York Pilates, and a personal training certification from the National Academy of Sports Medicine (NASM). She recently completed her Classical Mat certification at Opal Wellness Studio and is currently working toward her Classical Comprehensive Equipment certification.