#1 Vals-les-Bains
This Ardèche spa town of 3,500 residents draws visitors for its 145 carbonated mineral springs and the Source Intermittente, a geyser that erupts every six hours. You will find Belle Époque architecture, shaded parks with giant sequoias, and a 1500-square-meter spa. It serves as a practical base for exploring volcanic Ardèche, including canyoning, mountain biking, and wild gorges. Make sure to try the local sparkling water, Bourganel beer, and chestnuts.