Australia is in the midst of a full-blown sauna boom, with these steamy sanctuaries popping up across the nation. But as we embrace the heat, one prominent voice is urging a radical shift in our steamy etiquette: it’s time, they argue, to get naked.

Kate Hennessy, writing for Guardian Australia Lifestyle, has thrown down the gauntlet, suggesting that the rising popularity of saunas, particularly in a mixed-gender environment, should be accompanied by a widespread adoption of the European tradition of going au naturel. Her compelling argument? It’s not just about tradition; it’s about hygiene, comfort, and getting the most out of your sweat session.

The Great Australian Sweat Shift

The numbers tell a compelling story of Australia's increasing fascination with saunas. Guardian Australia Lifestyle reported a staggering surge in Google searches for “sauna,” jumping from approximately 120,000 per month to over 500,000 in the five years leading up to June 2026. This exponential growth underscores a societal embrace of the ancient practice, driven by its touted health benefits, from improved circulation to stress reduction.

From boutique wellness centres charging upwards of $40 for a single 30-minute session to more affordable community options, saunas are no longer the exclusive domain of luxury gyms. This democratisation of heat therapy presents a unique opportunity, Hennessy contended, to re-evaluate our customs and perhaps, to shed more than just toxins.

Why Bare All? The Hygiene Argument

At the core of the “naked sauna” advocacy is a practical, almost clinical, argument about hygiene. Hennessy championed the notion that sweating into a towel, rather than a damp swimsuit, is inherently more sanitary. In her view, wet swimwear can harbour bacteria and create an unhygienic environment, counteracting the very cleansing purpose of a sauna.

Imagine a communal space where chlorinated or salinated swimwear, still dripping from a prior swim, is brought into a hot, enclosed space. The concerns about hygiene are not unfounded, and going naked, with a clean towel to sit on, presents a compelling alternative that many in Europe have long understood. It's a practice rooted in common sense, promising a cleaner, more hygienic experience for all users.

Cultural Currents: Learning from Europe

Hennessy’s persuasive piece looks to the continent for inspiration, specifically to Germany and the Scandinavian nations where saunas originated. In these countries, the idea of wearing swimwear in a sauna, even a mixed-gender one, is considered an anomaly. Nudity isn't seen as sexual but rather as natural, facilitating the body’s ability to sweat freely and maximise the sauna’s benefits. The absence of cultural hang-ups regarding modesty in these settings allows for a more relaxed and authentic experience.

Adopting this European approach in Australia would, in Hennessy's estimation, normalise a practice that is both more hygienic and more aligned with the traditional ethos of saunas. It challenges our societal norms around public nudity and encourages a re-evaluation of what constitutes appropriate behaviour in wellness spaces.

The Australian Conundrum: Modesty vs. Modernity

While the logical arguments for naked saunas are robust, the cultural hurdle in Australia remains significant. A nation known for its beach culture and relaxed attitude, there's still a strong undercurrent of modesty when it comes to communal nakedness outside of very specific contexts. The idea of mixed-gender naked saunas, while gaining traction in some progressive wellness circles, is likely to meet resistance from a broader public accustomed to more conservative norms.

However, as the sauna trend continues its upward trajectory, the debate initiated by voices like Hennessy’s serves as a crucial catalyst for discussion. Will Australians choose to cling to their swimwear, or will they, like their European counterparts, eventually embrace the liberating and hygienic practice of going bare in the sauna? The heat is on to see how this cultural shift unfolds.