Abstract: The present invention relates to systems and methods for conducting cold water exposure therapy using structured treatment ice and integrated water circulation. The system includes an ice container configured to form and hold treatment ice, and an agitator module comprising a pump, battery, and impingement ports that direct treatment water onto the treatment ice to rapidly chill the water. The ice container can be immersed in a treatment tank, such as a standard bathtub, allowing a user to undergo cold exposure therapy without requiring permanent infrastructure. Enhanced features include turbulence-inducing impingement ports, mobile app connectivity for session tracking, and a freezing chamber with thermally conductive supports for efficient ice formation. The reusable system enables precise thermal control, user immersion, and fast deployment in both clinical and at-home settings.