There's a class for everyone with over 80 group fitness classes a week. This is a new kind of group therapy. Mountainside Fitness is designed with you in mind. Push your limits with our premium training equipment, be motivated by others in one of our 80+ group fitness classes per week, or get your heart racing with our state-of-the-art cardio equipment. Relax after your workout in our sauna or steam rooms, then grab a protein-packed smoothie to go at our MCafé.