Sauna Culture is an independent traditional Finnish sauna on South Sharon Amity Road, with no infrared cabins. Every visit includes the cold plunges: three individual tubs set at beginner, intermediate and advanced temperatures rather than one shared bath. A 90-minute drop-in day pass costs $40 on weekdays and $50 at weekends, and a private suite with its own sauna, shower and cold plunge can be booked.