Contrast therapy in Mooloolaba
If the sauna is where you open up and the ice bath is where you reset, contrast therapy is what happens when you move between the two, and it’s where the real magic lives.
Alternating between heat and cold has been practised across Nordic, Japanese and Russian cultures for centuries. It’s not a modern wellness trend. It’s one of the oldest and most intuitive things a human body can do – and science is now catching up to explain why it feels so good.
What happens in your body
When you move from the heat of the sauna into cold water, your body responds dramatically. Blood vessels that dilated in the heat rapidly constrict in the cold, then dilate again as you warm up. This cycle, sometimes called the vascular pump, drives circulation through the body in a way that neither heat nor cold achieves alone. The result is increased oxygen delivery to muscles and organs, accelerated removal of metabolic waste, reduced inflammation, and a powerful cascade of neurochemicals that lift mood, sharpen focus and leave you feeling deeply, genuinely alive.
The contrast also activates the autonomic nervous system in a way that builds resilience over time. Moving calmly between extreme temperatures trains your body, and your mind, to regulate stress more effectively. People who practise contrast therapy regularly often describe feeling less reactive, more grounded and better able to handle whatever the day brings.
How to do it at Si
There’s no single right way, and we’d always encourage you to listen to your body over following a formula. That said, here’s a loose guide to get you started:
One round
10–15 minutes in the sauna, followed by 2–5 minutes in the ice bath, followed by a period of rest. That’s one round. Most people do 2–3 rounds in a session, though even one is genuinely beneficial.
Rest
The rest phase is not optional. It’s where a large part of the benefit happens. Sitting quietly between rounds, warm, calm, letting the body return to baseline, is as important as the heat and cold themselves. Don’t skip it.
Finish cold
Ending your session in the ice bath rather than the sauna is generally recommended. The cold closes the session with a burst of alertness and mood-lifting neurochemicals that carry you through the rest of your day.
Follow your body
If the sauna feels overwhelming, get out. If 2 degrees is too much today, choose 8. The body responds well to what it can meet with calm, not what it has to white-knuckle through.
More than a physical experience
Something else happens in contrast therapy that is harder to measure but just as real. The combination of heat, cold and rest creates a natural pause from the noise of everyday life. Phones stay away. Conversation slows down and deepens. Time feels different.
For many of our guests, this is the part they come back for most. Not just how their body feels afterwards, but how present they felt during, how much they actually connected with the person sitting next to them, or with themselves.
This is what drew us to contrast therapy in the first place. And it’s what Si is built around.
Who it's good for
If you train hard
Contrast therapy supports faster recovery by reducing inflammation and DOMS (delayed onset muscle soreness). Many athletes use it the day after big sessions.
If you’re stressed
The heat and cold genuinely quiet the nervous system in a way that’s hard to replicate. A sauna session is one of the few things that forces you to stop.
If you’re just curious
It doesn’t need a reason. Come and see how you feel.
A note on who should check first
If you’re pregnant, have a cardiovascular condition, or are managing a serious health issue, please check with your doctor before your first session. We recommend staying out of the sauna and ice baths if you’re feeling unwell.