Only in Japan heads out on an epic Japanese hot spring adventure, exploring 13 different hot spring towns around Fukushima Prefecture.

Japanese hot springs, or onsen as they're known here, are fed with natural spring water that rises up from deep underground. They're known for having many different kinds of water due to minerals picked up from the surrounding rock, with each water type believed to ameliorate a variety of ailments.

There are hundreds of onsen towns in Japan, many with history going back centuries, if not millennia! Check out Only in Japan's selection above, then you can explore even more here!