The Spa at Encore Boston Harbor
Hotel SpaBoston, Massachusetts
Adults-only hotel spa at Encore Boston Harbor in Everett with separate men's and women's heat and water facilities, booked by appointment.
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Spas with reservation required in Massachusetts
3 spas match
Atlas Beauty Hammam Spa
HammamBoston, Massachusetts
A Moroccan-style hammam on Route 1 in Peabody offering steam, sauna and exfoliation treatments for adults and couples, reservation only.
$$SPA InterContinental Boston
Hotel SpaBoston, Massachusetts
Hotel spa inside the InterContinental Boston in the Downtown waterfront district, open daily 10am–6pm, reservation required for guests.
$$$
