Instructors Grapevine Yoga takes great pride in offering superior instructors for Yoga, Tai chi and Pilates. Our experience and joy shine through for our respective physical arts--and for our wonderful students! Studio owner Cathy Harmon received her 500-hour certification from Namaste International and is a Registered Yoga Teacher (RYT) with Yoga Alliance.  Cathy Harmon   Mandy Mahoney     Leti Carson                                   Brenda Sanders     “Teachers open the door. You enter by yourself." Chinese proverb