I did check out the co-ed area and I cannot recommend the spa on those grounds. It's a meagre substitute against actual outside naturism but it's better than staying home and turning up the heat during a Northeast winter. You definitely have to be comfortable with seeing naked and going naked. The unisex men’s bath has four tubs of various temperatures, one wet sauna, one dry sauna and several stand-up and sit-down showers. King Spa was a good place to ditch my late-winter blues along with my clothes.