ThermoSpas has crafted a state-of-the art exercise hot tub called The Aquacisor that is over 4 feet deep, making it the deepest hot tub around! Not only can you relax tired muscles after a workout, you can also use the hot tub for jogging and running. Yes, jogging and running right in the hot tub! Traditional running on pavement and other hard surfaces can cause damage to the knees and can put you at risk for injury. With the Aquacisor exercise hot tub, you can get all the benefits that come with cardiovascular exercise – without damage to your joints.