Suolijärven sauna is a cosy, cottage-style public sauna with traditional wood-heated stoves on the shore of lake Suolijärvi in Hervanta, with winter swimming in the lake. Seats are booked online in one-hour shifts, or you can walk in and take the next free shift, and a second sauna takes overflow. The sauna is mixed and swimsuits are mandatory. Entry is EUR 8, paid by card or MobilePay. The winter season opened on 6 September with afternoon and evening hours Wednesday to Friday and Sunday.