Oslo Badstuforening Grefsenkollen

Sidensvansen is the Oslo Sauna Association's mobile sauna at the top of Grefsenkollen, beside the log-built Grefsenkollen Restaurant, with a panoramic view over the city and the fjord. It seats up to eight people facing the view. Changing rooms with warm showers and toilets are in the restaurant building, and there is a scenic outdoor shower next to the sauna. It opens Wednesday to Sunday. A shared session costs NOK 150 for members and NOK 260 for others; private hire is two hours.