At least the best ones. Take a look and judge yourself.
For a more diverse experience, more images and more details open the sauna map.
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The Three Elements
London, United Kingdom
The Torby Hotel
Fiskars, Finland
The Touring Sauna
Holland-on-Sea, Essex, United Kingdom
The Treehouses at Lanrick
Doune, Perthshire, United Kingdom
The Wandering Wild Spa
Saltdean, Sussex, United Kingdom
The Wee Sauna
Ballygally, County Antrim, United Kingdom
The Wee Wild Sauna
Lochwinnoch, Renfrewshire, United Kingdom
The Wellbox
Quality Hotel The Box
Linköping, Sweden
The Wild Life Sauna
Sway, Hampshire, United Kingdom
The Wild Sauna
Whichford Mill
Whichford Mill, Warwickshire, United Kingdom
The Wild Sauna Co.
Port of Menteith, Sterling, United Kingdom
The Wild Spa Group
Blandford Forum, Dorset, United Kingdom
The Wild Space
Piddinghoe, Sussex, United Kingdom
The Wildwood Spa
The Park Cornwall
Mawgan Porth, Cornwall, United Kingdom
The Wood-Fired Sauna at Three Rivers
Geldeston, Norfolk, United Kingdom
The barrel sauna Greystones
Wicklow, Ireland
Thermae 2000
Valkenburg, Netherlands
Thermae Grimbergen
Grimbergen, Flemish Brabant, Belgium
Thermae Son
Son, Netherlands
Therme Bad Aibling
Bad Aibling, BY, Germany
Therme Miriquidi
Thermalbad Wiesenbad
Thermal bath Wiesenbad, NI, Germany
Therme Wien
Wien, Wien, Austria
Thermen & Beauty LeeuwerikHoeve
Burgum, Netherlands
Thermen & Wellness Anholts
Schoonebeek, Netherlands