Collingwood, Melbourne
Inner Studio's Collingwood site is built around what it describes as the Southern Hemisphere's largest sauna, paired with cold plunge pools set at two different temperatures. It also runs breathwork, yoga and Pilates classes alongside the sauna and plunge facilities. See Inner Studio's website for session bookings.
This is general information, not medical advice. Sauna, cold plunge and contrast therapy aren't right for everyone — consult a qualified health professional before starting, particularly if you have a heart or circulatory condition, are pregnant, or have any other health concern.