Hana Parnell

Hana takes its name from the te reo Maori word for 'to glow', and its Parnell rooms are the only ones in the group with a traditional sauna, heated to around 85C, alongside the full-spectrum infrared cabins. Each private contrast room pairs a sauna with an ice bath set around 6C and filtered with hydrogen peroxide and ozone. Sessions run 60 minutes at $110, and a second person can join for $40.