Entrepreneurship: A New Lure for Spa Customers? A Salt Cave

Nonetheless, salt therapy, also known as halotherapy, a venerable treatment in Central Europe and Asia, is now being offered at spas, resorts and stand-alone facilities in the United States in the form of salt beds, salt rooms and salt booths. Floors and walls that are lined with salt blocks and salt crystals, and zero-gravity chairs (recliners designed to relax the back), are the norm. A device known as a halogenerator grinds sodium chloride into a dry aerosol, then disperses it to mimic the microclimate of a salt cave.

Perhaps unsurprisingly, salt spas seem to be sprouting in pockets of the United States that attract the rich. For example, at the Montauk Salt Cave, which opened two years ago in the Hamptons, a session costs $40 for…

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