Sauna Fenomeen is a unique sauna. It was squatted in 1984, given legal status by the city in 1989 and is still run mostly by enthusiastic volunteers. It's a sauna with an ‘alternative’ atmosphere, so you can expect non-alcoholic beverages and organic fare. It's a naturist sauna meaning the wearing of swim wear or undergarments of any kind is not appreciated. Facilities include dry sauna, Turkish steam bath, Jacuzzi, outside space, chill out space, massage, sunbeds, a bar, chess and a library.