TSS Geronimo - Home for Strength and Support Your go-to spot for serious strength training in the heart of South Texas. Serving Seguin, New Braunfels, San Marcos, and beyond, our 6,000+ sq. ft. climate-controlled gym is loaded with elite equipment and Texas-made strength gear. Members enjoy 24/7 access, no contracts, and a laid-back, results-driven environment. After your workout, refuel at our Smoothie & Nutrition Bar and keep crushing your goals.