This Tampere company runs sauna cruises on Lake Näsijärvi aboard a 36-foot motor catamaran that takes up to 12 passengers. A typical route circles the Siilinkari lighthouse and then anchors in a sheltered spot for sauna, swimming and relaxing, though you can also simply enjoy the views. On board are an air-source heat pump, 230 V power, a toilet and a large fridge-freezer.
Cruises must be booked in advance, and cards are accepted. The company also rents out a motorhome for a week or another period: it is registered for five people, sleeps four to five, and you can bring bikes, beach toys and golf clubs.