Havelsauna Saunafloß

A sauna raft on the Havel that leaves from Campingpark Sanssouci in Potsdam. Groups of up to six hire the whole boat: a wood-fired sauna heated to up to 100°C with panorama windows, a changing room, a deck and a ladder for swimming in the lake, with Aufguss included. A 3-hour trip for up to four costs €240; an evening session moored at the jetty starts at €195. Bookable year round, including in winter.