Behind the burnt-timber exterior of this sauna by Canadian studio Partisans is a cavernous cedar interior that emulates the form of a seaside grotto.
Partisans designed the private sauna, named Grotto, for a craggy spot on the shore of Lake Huron, north of Toronto. Sans Souci Island, a lump of prehistorical granite that rises out of the water, forms the foundations for the wooden structure.
The site is ranked by National Geographic as being one of the best places in the world to appreciate the sunset.
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