Cal Spas Fitness Swim Spa is a beast, a force to be reckoned with. It is you against the current. It is an adrenaline rush to overcome and conquer; it allows you to raise the bar far. Your limit is your endurance, increase your stamina and become the best. Throughout the entire year, you can get fit using cutting edge technology that relaxes you and makes you stronger. Do the most with a Cal Spas Fitness Swim Spa.