Terme Libere Viterbo, in Lazio near Rome, offers thermal water with a neutral pH of 7.3. Indoor pools, massage and a sauna near Viterbo's well-known hot springs.
Insider tip — The coordinates of this entry correspond to the Rome region and not to Viterbo (80 km away). Possibly a Rome-based establishment with a thermal theme, or incorrect geographic data — check on site.