A self-service Finnish sauna by the Vajnorské jazerá lakes, run by Pixxla, with a panoramic view over the water and a 100 °C sauna experience. It is booked online at least three hours ahead, either as an individual public entry or privately for a group of up to six, at €15 to €75. A cold plunge can be booked with the sauna or on its own, and there are no showers: guests cool off by bathing in the lake. Access instructions arrive by email after payment.