Extreme Fitness Gym occupies 29,000 square feet on Boswell Road in Chula Vista's Eastlake business district, ranking among the largest private gyms in San Diego County. The facility staffs a registered dietitian alongside its coaching team for meal planning and body-composition analysis, the same clinical nutrition discipline practiced at Lani Rausa, RD - Dietitian Nutritionist. Programming centers on functional training with kettlebells, TRX suspension systems, Indian clubs, and BOSU equipment across adult boot camp, cross-training, and strength classes, plus a youth speed-and-agility program. A members' recovery room supplements the training floor, and high-volume lifters extend that recovery protocol with sports massage at The Massage Studio Eastlake. Structured multi-week training challenges combine body-composition analysis, individualized workout design, and coached kettlebell progressions measured across the full 29,000-square-foot floor.