Cold Plunge
Awaken Your Strength.
A Return to the Roots of Resilience
Our cold plunge is a modern expression of an ancient practice – a deliberate, awakening shock that teaches the body to adapt, and the mind to stay steady through intensity.
For centuries, Nordic cultures stepped from blazing heat straight into icy waters – not for comfort, but for clarity. This was tradition, but also training. A way to sharpen the mind, fortify the body, and cultivate resilience that lasts far beyond the water.
The Power of the Cold
The Benefits of The Cold Plunge
Cold immersion is more than a trend – it’s a biological reset. When you enter the plunge, your body floods with signals: your breath sharpens, your circulation constricts, your focus heightens, and your nervous system becomes fully alive.
This isn’t discomfort for discomfort’s sake. It’s intentionally controlled challenge – the kind that transforms you from the inside out.

The cold constricts blood vessels and flushes inflammatory pathways.

Cold exposure triggers a surge of dopamine and endorphins - a natural, powerful “feel-good” response.

Athletes and wellness practitioners rely on cold immersion to speed muscle repair and reduce soreness.

Learning to breathe calmly through the shock carries into daily life - making you more adaptive, more grounded, more capable.

The cold activates your body’s deepest survival systems, creating a massive rush of oxygen and blood flow once you step out.
The cold doesn’t take from you - it reveals you.
Cold Shock Proteins: Transformation at the Cellular Level
Just as the sauna activates heat shock proteins, the cold plunge awakens cold shock proteins – a complementary set of biological protectors that :
- Support brain health
- Improve cellular repair
- Enhance metabolism
- Strengthen immune response
- Promote longevity and resilience
Where Discomfort Becomes Awakening
Step Into the Cold. Step Into Your Power.
Stepping into cold teaches your body to stay calm in intensity – and teaches your mind that you’re capable of more than you think.
The Completion of the Cycle
The cold plunge is more than a standalone therapy – it’s the perfect counterbalance to the heat of the sauna.
- Heat expands. Cold contracts.
Together, they create a rhythmic shift in the body that is deeply restorative.
Contrast therapy has been practiced for thousands of years for one reason: it works. It improves circulation, increases adaptability, and provides a full-body reset that no single modality can achieve alone
- The Heat Strengthens You
- The Cold Awakens You.
And the transition between them is where the body finds balance.
At ERTH, this ancient sequence becomes a luxurious, modern ritual – crafted with intention and elevated comfort.
Restore. Reset. Breathe Deeply.
At ERTH Spa + Wellness, every treatment is designed to help you feel better at a molecular level. We combine time-tested therapies, like contrast therapy and red light, with advanced regenerative science – including stem cell therapy, EBOO, TRT, IV therapy. Rooted in nature and elevated by innovation, ERTH is where modern luxury meets true restoration – helping your body recharge, rebalance, and thrive from the inside out.