Abstract: Systems and methods are disclosed for ice bath temperature control and management for ice baths and cold plunge tanks are disclosed. A chiller unit, connected to the plunge tank through a high-flow circulation system with quick-connect fittings and valves, uses a vapor-compression refrigeration system and advanced sensing to achieve precise temperatures, even in high ambient conditions, while reducing power consumption compared to convention systems. Local control of the chiller is provided through an onboard graphical interface and multifunction rotary knob, remote control of the chiller is provided through a mobile application on a user device. A monitoring system tracks chiller and system parameters such as water flow, temperature, ambient conditions, and tilt orientation, and uses a predictive time-to-temperature engine to optimize cooling start times based on real-time and historical data. The system supports real-time alerts, protective shutdowns, and over-the-air software updates.