Pure hot springs are potent; drink plenty of water before and after your soak.
In this guide, we dive into what makes these 13 spots the pinnacle of the onsen experience and why you need to visit them. What Makes a "Gensenfuro" Special? gensenfuro 13 top
Travelers here can complete a "nine-bath tour" for good luck. Each bathhouse has a different source and mineral profile, all maintaining strict Gensenfuro standards. 12. Dogo Onsen (Ehime) Pure hot springs are potent; drink plenty of