Prague's spa culture traces its roots not to modern wellness trends but to medieval bathhouses that lined the Vltava, where citizens paid in copper coins for hot water and herbal steam. The wine bath tradition arrived later, imported from Austrian spa towns in the nineteenth century when physicians prescribed grape-skin poultices and fermented must soaks for joint inflammation and circulation disorders. By the 1880s, Karlovy Vary and Mariánské Lázně had formalized vinotherapy protocols, and Prague's private clinics followed, adapting the method for urban clients who lacked access to vineyard resorts. The practice faded after 1948, resurfacing only in the past two decades as Central Europe's spa economy modernized. Today's wine bath spa Prague venues occupy renovated merchant houses in Nové Město, their vaulted cellars converted into tiled treatment rooms where wooden tubs hold heated water infused with red-grape extract, essential oils, and mineral salts. The liquid turns a pale amber, releasing polyphenols and resveratrol — compounds studied for their antioxidant properties — into skin contact over a sixty-minute soak. Most facilities pair the bath with a salt-cave interlude or a ten-minute massage using grape-seed oil, extending the session to ninety minutes. The setting borrows from both historical spa architecture and contemporary minimalism: exposed brick, low lighting, Czech linden benches, and a quiet ban on mobile devices. Unlike the city's beer spa venues, which lean into the novelty of unlimited pilsner taps, wine bath operators emphasize the clinical lineage, citing nineteenth-century balneology texts and maintaining water temperatures between 36 and 38 degrees Celsius. The distinction matters to repeat visitors, who return not for spectacle but for the methodical warmth and the hour of enforced stillness. Prague's spa quarter now clusters a dozen such venues within a ten-block radius of Karlovo náměstí, each offering slight variations on the wine bath spa Prague formula: organic Moravian wine concentrate, chromotherapy lighting, or paired facials using crushed grape seeds. Reservation windows open three months ahead, and evening slots fill fastest, particularly Friday and Saturday after 18:00. The experience remains niche compared to the city's larger thermal complexes, attracting travelers who already know the vocabulary of European spa culture and locals seeking a structured escape from the noise of Wenceslas Square, two metro stops north.