SPA Korona is the sauna and relaxation zone of the KS Korona sports club swimming pool on Kalwaryjska, entered from the club car park. It has a Finnish sauna heated to about 100°C, an infrared sauna, a jacuzzi, a relaxation area and a massage room. The sauna zone is textile-free and used nude, wrapped in a towel. It opens daily from 4 PM to 10 PM, and entry costs 45 zł for the first 70 minutes.