In Sydney, 6 of the curated saunas fit this cut. See the full Sydney guide for every venue, or keep scrolling for just the saunas with a cold plunge.
Every sauna with a cold plunge in Sydney

38° The Bathhouse
$$$Sydney, Australia
A basement bathhouse beneath the Pacific Building on Bondi Beach's Campbell Parade. A 90-minute session moves between a Finnish salt sauna, a steam room, magnesium hot pools, a cold plunge and ice baths. Private infrared suites, massage and facials are booked separately.

Escape Bathhouse
$$$Sydney, Australia
A bathhouse in the restored 1929 Spanish Mission-style Seymour's Building on the Pacific Highway in Chatswood. The circuit is a 90C traditional sauna, a 44C steam room, a 38C mineral pool and two ice baths, with an alcohol-free bar and treatment rooms. Sessions are timed, with early-bird mornings, quiet hours and a weekly evening sleep session.

Nature's Energy Day Spa and Bathhouse
$$$Sydney, Australia
Nature's Energy's Balmain bathhouse on Darling Street has a traditional sauna at around 80°C, an infrared cabin and a steam room. There are also a magnesium mineral pool and two ice baths, plus a day spa alongside. Sessions run 90 minutes, or 60 at sunrise, booked online and taken in swimwear in a quiet mixed space.

Revive Wellness Centre
$$Sydney, Australia
Revive is the recovery floor of King Beats Fitness in Glebe, a short walk from Wentworth Park. A cedar and stone sauna sits alongside an infrared cabin, ice baths, a dry ice room and a magnesium spa pool. A recovery-only day pass lets anyone use it without joining the gym.

Sauna Amalfi Avalon
$$$Sydney, Australia
Sauna Amalfi is a small private-room studio on Simmonds Lane in Avalon Beach, on Sydney's Northern Beaches. Full-spectrum infrared cabins take one or two people for 45-minute sessions, and a separate room pairs a traditional Finnish sauna with a filtered cold plunge for contrast rounds. Each room has its own shower.

The Sauna Hub
$$Sydney, Australia
A private-room infrared sauna studio in Dee Why on Sydney's northern beaches. Each room has chromotherapy lighting, red-light therapy and a screen, with an ice bath, hot showers and towels on hand. Sessions are booked casually or through a membership that adds key access outside staffed hours.