Spa Castle

This expansive wonderland in College Point, Queens, has taken on near legendary status in NYC, partly for its quirky layout and partly because it attracts a diverse following, with frat boys and families among the patrons. On its first floor are separate nude bathing and showering areas for men and women. To meander through the rest of the complex, you'll don special "uniforms" (pink tees and orange shorts for ladies, gray shirts and blue bottoms for gents). On the second and third floors, you'll find a coed, year-round outdoor water park (bathing suits compulsory) with all manner of heated jets, whirlpools and showers. Inside, there are seven themed saunas; one might have healing minerals in it, while another may feature colored lighting (you select the therapeutic illumination yourself). Bring some friends and make a day of it; once you pay the entry rate, you can have a crazy adventure while snacking on dumplings ($10) and corn ($3) from the on-site food court, or you can go for a shiatsu massage (60mins $75, 90mins $130) and simple scrub (40mins $80), followed by a delicious meal ($12–$20) in the third-floor Korean restaurant.