The sauna, which can accommodate 100 people, has been erected at the SALT festival of art, music and architecture on Sandhornøya Island, near Bodø in northern Norway.
Aside from spectacular views of the sea through the sauna's glass front, vistors can enjoy cultural events including music, talks, and performances.
The Agora sauna is one of a the many temporary buildings erected for the project, many of which resemble traditional Norwegian fish racks set up on Sandhornøya as part of an art project set to highlight life in the Arctic.
The buildings will in the coming years be disassembled and recreated in other northern regions in the world including Greenland, Iceland, the Faroe Islands, Ireland, Scotland, Spitsbergen, Alaska and Russia.
The site was first launched in the summer of 2014, but the architectural centrepiece, a long A-frame hall, was badly8 damaged during the winter in a major storm.
The festival reopened in June this year after the main building was rebuilt and now includes a performance auditorium, a number of mobile lodges with glass ceilings and wood burning stoves, and a restaurant space alongside the Agora sauna.