Edinburgh Fringe Opens a 90°C Theatre — and Tests Human Endurance
The new 80-seat venue ditches velvet chairs for swimwear, replacing three-act plays with intense, 15-minute bursts of sweat-drenched art.
The hottest ticket at the world’s largest arts festival is quite literally a 90°C sweat lodge. Instead of sinking into velvet seats in polite silence, audiences at the Edinburgh Fringe are showing up in swimwear to sit around a glowing stove. They watch performers execute high-energy, towel-waving choreography in thick, essential-oil-infused steam. It is a collision of ancient wellness rituals and modern immersive theatre that completely rewrites the rules of live performance.
The Epiphany in the Steam
Theatre director James Grieve did not set out to reinvent the auditorium. He was sitting in a sauna in Karlstad, Sweden, when a sauna master unexpectedly began waving a towel, circulating fragrant steam with precise, rhythmic snaps.
“I looked around and realised I am sitting in an auditorium, and somebody is performing a show for me. I’m in a theatre.”— James Grieve
Grieve and his long-time collaborator, designer Lucy Osborne, are no strangers to unconventional spaces. In 2014, they launched the "Roundabout," an award-winning pop-up amphitheater. But importing *Aufguss*—a multisensory European sauna ritual involving heat, steam, aromas, and towel-waving choreography—required a completely different architectural logic.
To make it work, they built an 80-seat, purpose-built wooden venue at Edinburgh’s Summerhall arts center. Head of the sauna Deborah Carr, a professional *Aufguss* master trainer, notes that Germany and Italy already boast sauna theatres seating up to 320 people. In the UK, however, the concept is entirely untested. Grieve and Osborne are betting that audiences crave communal, wordless experiences as much as spoken-word plays. But that bet comes with a severe biological constraint.
15 Minutes to Tell a Story
Conventional theatres aim for a comfortable 20°C. The Sauna Theatre operates at a temperature just ten degrees shy of boiling water. That sheer extremity forces both actors and audiences into a primal, hyper-present state where traditional storytelling simply cannot survive.
For the performers, the physical risk is immense. Sauna master Gunnar Bjercke points out that executing dynamic choreography inches from a scalding open heater requires elite athletic stamina and flawless spatial awareness. A single misstep is not an artistic failure; it is a severe burn.
Audiences face their own battle of attrition. During the venue's "Morning Sauna Rave," one Fringe critic confessed to becoming a dizzy, disorientated wreck. They fled into the Scottish morning air for an ice bath after just 15 minutes. Long-form narrative arcs are out. Intense, sweat-drenched bursts of art are in.
At a festival famous for shock value, it is easy to dismiss a swimwear-only venue as a whimsical novelty. This year alone features performers drinking their own urine and multiple fully naked shows. To stand apart, Grieve banned the nudity customary in European saunas, strictly keeping the focus on the art. The question is whether a venue that actively tests human endurance can scale into a permanent cultural movement.
What people are saying
“don’t dryhump naked yall I done accidentally fucked this nigga 🤦♀️”
How 90°C Heat Rewrites Theatre
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