The sauna is situated in the park Jubileumsparken which is part of the city’s quatercentenary in 2021. It was created by German architect collective Raumblabor Berlin and in large parts it’s constructed from recycled material. For instance, the changing rooms were made from 12 000 recycled bottles.
You book the sauna online (unfortunately the online booking system is only available in Swedish so far) and you can choose between ladies, gentlemen and mixed. And it’s free!