Fitness Center in Seguin, Texas Where families, beginners, and athletes come together to achieve lasting fitness results. Discover 78155 Athletic Club — Seguin’s leading fitness center and gym. Our modern facility features top-tier equipment, spacious workout areas, free fitness classes, and a refreshing smoothie bar. Enjoy a supportive community atmosphere designed to help you achieve your goals. We take pride in creating a supportive, welcoming fitness community in Seguin. Our experienced trainers provide personalized guidance to make every workout effective and enjoyable. Stay motivated, connect with others, and refuel with a refreshing smoothie after your session — all within our state-of-the-art fitness center.