The Spa at Napa River Inn
Hotel SpaNapa Valley, California
Adults-only hotel spa in downtown Napa with thermal circuits, sauna, steam and cold plunge, plus massages, facials and medical aesthetics.
$$$
Spas with cold plunge
4 spas match
Kamalaya Koh Samui
Destination SpaKoh Samui, Surat Thani
Kamalaya Koh Samui is an adults-only destination spa and wellness retreat on Laem-Set Rd with over 100 treatments, thermal circuits and multi-day health
$$$$East Town Spa
Day SpaMilwaukee, Wisconsin
East Town Spa in Milwaukee's Juneau Town combines a full-service salon and med spa with a thermal circuit of sauna, steam, pools and cold plunge.
$$$Fivelements Retreat Bali
Destination SpaUbud, Bali
An adults-only wellness retreat on Ubud's Ayung River offering multi-day healing programmes, thermal circuits and plant-based cuisine by reservation only.
$$$$
