The Coldest Ice Bath In The World
Gets Down To -2°C | 6+ Months of Crystal Clear Water | Low Maintenance
Find Out MoreFrom Beginner to Beast — We've Got Your Plunge
The Ultimate Cold Plunge: For All Users and Purposes
Australia's most powerful and efficient cold plunge.
Powerful, Smart, Reliable
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Powerful cold plunges that can change your life.
We are passionate about building cold plunges that are powerful, reliable and easy to maintain. We design and deliver awesome products and back it up with a customer service approach that goes beyond just the product. Whatever you need, we are here to help. We want everyone to have a great experience with cold plunge just like we have had.
About UsThe Sub-Zero Plunge — Built To Last
Powerful Commercial Grade Plunge
Thick insulated walls and a robust compressor deliver rapid cooling to -2°C. Built tough for daily use — whether at home, the gym, or a wellness studio.
Unique Leak-Proof Drop-In Design
World-first Australian design. No plumbing connections, no external pipes to leak. Simply drop the unit in and you're ready to plunge.
Precise Temperature Control
Set your exact temperature via the app or on-unit controls. From a gentle 15°C to a bone-chilling -2°C — full control at your fingertips.
Powerful Pump and Filter
Our filtration system keeps water crystal clear for 6+ months. Minimal maintenance so you can focus on your cold therapy, not cleaning.
How Cold Plunging Can Change Your Life
The benefits are endless and they are real. Here are just a few
Recovery For Athletes
Cold water immersion reduces inflammation and muscle soreness, helping athletes recover faster and train harder.
Improved Mood & Mental Health
Cold exposure triggers a rush of endorphins and norepinephrine, naturally boosting mood and reducing symptoms of anxiety and depression.
Stronger Immune System
Regular cold plunging increases white blood cell production and metabolic rate, strengthening your body's natural defences.
Energy Boost
A cold plunge activates your sympathetic nervous system, spiking adrenaline and dopamine for hours of natural, sustained energy.
Based on 68 reviews
"Words can't fully express how happy I am with the plunge. It's been a game changer for my recovery and mental clarity. Absolutely love it."
Verified Buyer
"Setup was a breeze. Water has stayed crystal clear for months. The app control is a great touch — I can have it ready before I even get home."
Verified Buyer
"Best investment I've made for my health. The build quality is solid and it actually gets down to the temps they claim. Highly recommend."
Verified Buyer
"Customer service was unreal. Joel helped me every step of the way. The plunge itself is a beast — gets ice cold in no time."
Verified Buyer