A few of my friends built this sauna and they goes from here to Iisalmi town in the summer sometimes celebrating. The engine is in rear side of the boat so they built steering system to the roof of the sauna. Before that they needed a observer front of the boat when they drive though a narrow river. When they came back from celebrating the driver had some troubles on the river. He didn’t see the river and possible other boats. Others were usually so drunk that they couldn’t be observers.
Besides the sauna boat of my friends here in Iisalmi is at least two other sauna boats. Also in Iisalmi a group called Halavatun Papat has a moped sauna. Here is more information
– Ilkka Rytk