Mountainside Fitness is your premier fitness center in Peoria, serving Peoria, Glendale, Phoenix, and Surprise with state-of-the-art facilities and affordable gym membership options. Our fitness club features top-tier equipment, group fitness classes, personal training, yoga, Pilates, and unique amenities including Cold Plunge, Red Light, Infrared Sauna, HYROX, and Green Turf. Whether you're into high-intensity workout classes or prefer pickleball and basketball, we have everything you need to reach your fitness goals. Join thousands of... read full review »