These are the saunas where the cold plunge is part of the design, not an afterthought. On-site tubs, troughs, or dip pools mean the hot–cold–rest cycle is available every session without planning the open-water swim yourself. Plan 90 minutes minimum to run the cycle properly rather than rushing a single long sit.
In Perth, 7 of the curated saunas fit this cut. See the full Perth guide for every venue, or keep scrolling for just the saunas with a cold plunge.
Every sauna with a cold plunge in Perth

Alchemy Sauna - Perth
$$Perth, Australia
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Ember Bath House
$$$Perth, Australia
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Löyly Recovery
$$Perth, Australia
Finnish

Melt Sauna & Cold Plunge
$$Perth, Australia

Sauna & Ice Bath Booragoon
$$Perth, Australia
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The Well
$$$Perth, Australia
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Tribe Sauna + Ice
$$Perth, Australia
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