Koivurannan Saunalautta is a floating sauna raft on the Oulujoki River with a spacious wood-fired log sauna, a café and an outdoor hot tub (EUR 4 extra). Bathers cool off in the river, and in winter an ice hole is cut, included in the ticket (adults EUR 13). Walk-in sessions run in the summer season; in the winter season, slots of 1.5 hours are booked online. Swimsuits stay on in the public sauna. The raft also runs public and private river cruises.