Floating Saunas: What It’s Like to Sauna on the Water in Pemberton

A floating sauna is what it sounds like: a sauna room built on a floating platform, moored on a lake or river. You warm up inside, then leave by the door and get into the water instead of a shower or a tiled plunge pool. The idea comes from the Nordic countries, and it has reached Australia over the past few years — the first here opened at Derby, Tasmania, in 2020, followed by one on Lake Burley Griffin in Canberra (Broadsheet).

Pemberton Floating Sauna is the same operator’s third site. It sits on Pemberton Pool, a long-standing swimming hole in the karri forest of WA’s Southern Forests and Valleys, about 3.5 hours from Perth and 1.5 hours from Margaret River. There are two independent wood-fired sauna rooms built from imported Finnish cedar, each with a floor-to-ceiling window over the water and forest, and a ladder back up onto the platform from the pool (Floating Sauna; Broadsheet).

Floating saunas film beautifully — steam, tall trees, a leap into still water — and Pemberton’s opened in the winter of 2026 to a wave of posts from travel and tourism accounts, including the Reel on this page. It also sits where two bigger trends meet: social, bathhouse-style saunas, and cold-water plunging.

Posts about both tend to promise a lot — detoxing, immunity, “resetting” the nervous system. This page keeps the experience and the evidence apart.

You book a one-hour slot online. A shared session puts you in one of the two saunas with up to six people; a private session gives your group a sauna room to yourselves, with a “Sauna Master” on hand to walk you through the hot and cold rounds (bookings). Most people alternate: time in the heat, a short dip in the pool, a rest, and round again.

The site is off-grid. There are no toilets on the platform — the nearest is about a ten-minute walk — so bring your own towel, drinking water and a change of clothes. There is a car park near the entrance (operator FAQ). It opens 7am to 9pm every day except Christmas Day (Floating Sauna).

What it gets right: the ritual really is that simple — heat, cold water, rest, repeat — and the setting is as calm as it looks.

What needs context: the Reel describes diving straight in. Pemberton Pool is natural water, and Royal Life Saving’s advice for rivers, lakes and dams is to check the depth and not to jump or dive in (Royal Life Saving). Get in feet first or by the ladder unless staff show you exactly where it is deep enough.

The “regret it for three seconds” moment is the cold-shock response: sudden immersion in water below about 15°C can bring an involuntary gasp — which can mean breathing in water — fast breathing and extra strain on the heart (Royal Life Saving WA). That is why a first dip should be short, calm and never alone.

The operator’s founder has described the hot–cold contrast as forcing “a rebalance of chemicals in the nervous system” (Broadsheet). It is a fair description of how it can feel; it is not something research has shown.

For most people the draw is simply the experience: warmth, quiet, a forest outside the window, and time with the people you came with.

Sauna bathing itself is one of the better-studied wellness habits. A Finnish study that followed 2,315 middle-aged men for around 20 years found that those who used a sauna more often had lower rates of fatal heart disease (Laukkanen et al., JAMA Internal Medicine, 2015). It was an observational study, so it shows an association rather than proof that saunas caused the difference — and the men were using saunas several times a week for decades.

A 2018 systematic review of 40 studies concluded that regular dry sauna bathing has potential health benefits, while noting most studies were small and that better-quality research is needed (Hussain & Cohen, 2018).

“Detox.” Sweat is mostly water and salts. One published estimate found the pollutants the body stores are lost in sweat in negligible amounts, far less than we take in through food (Imbeault et al., Environment International, 2018). We found no good evidence that a sauna detoxes the body.

The cold plunge. A major review of cold-water immersion found the evidence behind its many claimed benefits varies widely: some have a credible rationale, while others remain “at the level of anecdotal speculation” (Tipton et al., Experimental Physiology, 2017).

One visit is not a habit. The sauna research above looks at regular use over years. A single session on a trip away is a lovely experience, not a treatment.