Online registration may not be allowed for all activities. To enroll into a group exercise class, please reserve your spot via our mobile app [https://ymcagbw.org/mobileapp#faq-question-949250480]. Please contact us during regular business hours for registration information. The LesMills GRIT series features three unique workouts, including cardio, strength, and plyometrics. Each workout is designed to drive different results and is lead by a certified instructor. Please bring your own mat. Category Group Exercise Location Group Ex Studio at Upper Main Line Branch Instructor Merle Elloso