KOK runs wood-fired floating sauna boats at Langkaia in central Oslo, near Bjørvika and the central station, facing the Opera House and the Munch Museum. The shared sauna, FELLESKOK, seats up to eight for 1.5 hours including changing. A sauna master introduces the boat and keeps the stove supplied, and most guests dip in the fjord between rounds. Langkaia has a cold-water shower. Boats can also be booked privately for up to ten people or taken on a sauna cruise.