Stu Brattøra is a floating sauna in Brattørbassenget in central Trondheim, designed and built with thirteen NTNU architecture students. It has two modern electric saunas, each holding 12 people with its own unisex changing room, and direct access to the fjord for cold dips all year. Sessions last two hours; drop-in seats cost 219 kr and private hire of a room 1,899 kr. Booking is online and the door code arrives by SMS.